Question

Use substitution to solve the system of equations.

Please help and show work!! Will mark brainliest!!

Answer 1

option a is correct as the value of x is given as -2y by putting it in second equation you will get
-2y+y=4
-1y=4
y=-4
now we have got that y=-4 putting value of y in 1st equation we will get it as
x=-2(-4)
x=8
HOPE YOU UNDERSTAND!!

Answer 2

so first option is right