Question

x + 4y = 1 2x + y =-5 ​

Answer 1

2(1x + 4y = 1)= 2x + 8y = 2

-1(2x + 1y = -5)=-2x - 1y = 5 1x + 4 (1) = 1

0 7y = 7 1x + 4 =1

y = 7÷7 1x= 1- 4

y=1 x=-3