Question

if (x+2y,2x+y)= (-5,5) find value of x and y class 11 ch 2

Answer 1

Answer:

on comparison, x+2y = -5

2x+y = 5

on solving this you get the answer

Answer 2

$\huge\boxed{Answer}$

(x+2y , 2x+y) = (-5 , 5)

From Comparing both side

x + 2y = -5 ------(1)

2x + y = 5 -------(2)

multiplying eq.(1) by 2

2x + 4y = -10 ------(3)

From eq.(2) - eq.(3)

-3y = 15

3y = -15

y = -5

Then ,

x = -5 - 2(-5)

x = -5 + 10

x = 5