Question

The solution of the pair of linear equations 6x-7y=-20 and 2x+6y=10 are

a) x=1, y=-2
b) x=-1, y=-2
c) x=-1, y=2
d) x=1, y=2​

Answer 1

Answer:

c) x= -1 , y= 2

Step-by-step explanation:

1.) $6x - 7y = - 20$$6( - 1) \: - 7( 2) = - 20$

$- 6 - 14 = - 20$

$- 20 = - 20$

2.) $2x+6y=10$

$2( - 1) + 6(2) = 10$

$- 2 + 12 = 10$

$10 = 10$

Hence, x = -1 and y = 2

Hope it helps you..!

Answer 2

Answer:

C is the correct answer.