Learn all Concepts of Chapter 3 Class 10 (with VIDEOS). Check - Linear Equations in 2 Variables - Class 10

Last updated at Dec. 28, 2018 by Teachoo

Learn all Concepts of Chapter 3 Class 10 (with VIDEOS). Check - Linear Equations in 2 Variables - Class 10

Transcript

Example 4 Check whether the pair of equations x + 3y = 6 and 2x – 3y= 12 is consistent. If so, solve them graphically. x + 3y = 6 2x – 3y = 12 a1 = 1 , b1 = 3 , c1 = –6 & a2 = 2 , b2 = –3 , c2 = –12 Since 𝑎1/𝑎2 ≠ 𝑏1/𝑏2 We have unique solution Therefore, our system is consistent. Now we solve our equations graphically Solving (1) x + 3y – 6 = 0 3y = 6 − x y = (6 − 𝑥)/3 Solving (2) 2x - 3y – 12 = 0 3y = 2x − 12 y = (2𝑥 −12)/3

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.