{"id":67252,"date":"2021-01-04T18:21:12","date_gmt":"2021-01-04T12:51:12","guid":{"rendered":"https:\/\/www.kopykitab.com\/blog\/?p=67252"},"modified":"2023-12-15T10:09:03","modified_gmt":"2023-12-15T04:39:03","slug":"rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions","status":"publish","type":"post","link":"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/","title":{"rendered":"RS Aggarwal Chapter 4 Class 9 Maths Exercises 4.2 (ex 4b) Solutions"},"content":{"rendered":"\n<p>RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions: In this chapter, the knowledge of linear equations in one variable shall be recalled and extended to that of two variables. You also know that such equations have a unique (i.e., one and only one) solution. You may also remember how to represent the solution on a number line. Know more at the <a href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-4-linear-equations-in-two-variables\/\">parent blog<\/a>.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_47_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"ez-toc-toggle-icon-1\"><label for=\"item-69d01d16d3263\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-69d01d16d3263\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#download-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions\" title=\"Download RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions\">Download RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#important-definition-for-rs-aggarwal-chapter-4-class-9-maths-ex-4b-solutions\" title=\"Important Definition for RS Aggarwal Chapter 4\u00a0Class 9\u00a0Maths Ex 4b\u00a0Solutions\">Important Definition for RS Aggarwal Chapter 4\u00a0Class 9\u00a0Maths Ex 4b\u00a0Solutions<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#linear-equation-in-one-variable\" title=\"Linear equation in one variable\">Linear equation in one variable<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#linear-equation-in-2-variables\" title=\"Linear equation in 2 variables\">Linear equation in 2 variables<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#the-solution-of-linear-equation-in-2-variables\" title=\"The solution of linear equation in 2 variables\">The solution of linear equation in 2 variables<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#graphical-representation-of-a-linear-equation-in-2-variables\" title=\"Graphical representation of a linear equation in 2 variables\">Graphical representation of a linear equation in 2 variables<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#faqs-on-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions\" title=\"FAQs on RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions\">FAQs on RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#from-where-can-i-find-the-download-link-for-the-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions-pdf\" title=\"From where can I find the download link for the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF?\">From where can I find the download link for the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#how-much-does-it-cost-to-download-the-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions-pdf\" title=\"How much does it cost to download the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF?\">How much does it cost to download the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/#can-i-access-the-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions-pdf-offline\" title=\"Can I access the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF Offline?\">Can I access the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF Offline?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"download-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions\"><\/span>Download RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div id=\"example1\" style=\"text-align: justify;\">\u00a0<\/div>\n<p style=\"text-align: justify;\"><style>\n.pdfobject-container { height: 500px;}<br \/>\n.pdfobject { border: 1px solid #666; }<br \/>\n<\/style><\/p>\n<p style=\"text-align: justify;\"><script src=\"https:\/\/www.kopykitab.com\/_utility\/js\/pdfobject.min.js\"><\/script><br \/><script>PDFObject.embed(\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/01\/EXERCISE-\u2013-4B.pdf\", \"#example1\");<\/script><\/p>\n<p><a href=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/01\/EXERCISE-\u2013-4B.pdf\">EXERCISE \u2013 4B<\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"important-definition-for-rs-aggarwal-chapter-4-class-9-maths-ex-4b-solutions\"><\/span>Important Definition for RS Aggarwal Chapter 4\u00a0Class 9\u00a0Maths Ex 4b\u00a0Solutions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"linear-equation-in-one-variable\"><\/span><strong><b>Linear equation in one variable<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When an equation has only one variable of degree one, then that equation is known as a linear equation in one variable.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"linear-equation-in-2-variables\"><\/span><strong><b>Linear equation in 2 variables<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When an equation has two variables both of degree one, then that equation is known as a linear equation in two variables.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"the-solution-of-linear-equation-in-2-variables\"><\/span><strong><b>The solution of linear equation in 2 variables<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A linear equation in two variables has a pair of numbers that can satisfy the equation. This pair of numbers is called the solution of the linear equation in two variables.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"graphical-representation-of-a-linear-equation-in-2-variables\"><\/span><strong><b>Graphical representation of a linear equation in 2 variables<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Any linear equation in the standard form ax+by+c=0 has a pair of solutions in the form (x,y), that can be represented in the coordinate plane.<\/li>\n<li>When an equation is represented graphically, it is a straight line that may or may not cut the coordinate axes.<\/li>\n<\/ul>\n<p>Know more at the <a href=\"https:\/\/cbse.nic.in\/\" target=\"_blank\" rel=\"noopener\">official site<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"faqs-on-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions\"><\/span>FAQs on RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1702614802899\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"from-where-can-i-find-the-download-link-for-the-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions-pdf\"><\/span>From where can I find the download link for the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>You can find the download link in the above blog.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1702614865685\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"how-much-does-it-cost-to-download-the-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions-pdf\"><\/span>How much does it cost to download the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>You can download it for free.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1702614905396\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"can-i-access-the-rs-aggarwal-chapter-4-class-9-maths-exercise-42-solutions-pdf-offline\"><\/span>Can I access the RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions PDF Offline?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Once you have downloaded the PDF online, you can access it offline whenever you want.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>RS Aggarwal Chapter 4 Class 9 Maths Exercise 4.2 Solutions: In this chapter, the knowledge of linear equations in one variable shall be recalled and extended to that of two variables. You also know that such equations have a unique (i.e., one and only one) solution. You may also remember how to represent the solution &#8230; <a title=\"RS Aggarwal Chapter 4 Class 9 Maths Exercises 4.2 (ex 4b) Solutions\" class=\"read-more\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-chapter-4-class-9-maths-exercise-4-2-solutions\/\" aria-label=\"More on RS Aggarwal Chapter 4 Class 9 Maths Exercises 4.2 (ex 4b) Solutions\">Read more<\/a><\/p>\n","protected":false},"author":236,"featured_media":67345,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":""},"categories":[1,73395,73412,2985,73410],"tags":[3081,3086,4711],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/67252"}],"collection":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/users\/236"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/comments?post=67252"}],"version-history":[{"count":4,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/67252\/revisions"}],"predecessor-version":[{"id":522772,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/67252\/revisions\/522772"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media\/67345"}],"wp:attachment":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media?parent=67252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/categories?post=67252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/tags?post=67252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}