Question

Solve the system by substitution.
-8x - y = 30
-2y = x

Answer 1

Solution: (-4, 2), x= -4 and y =2

Explanation:

-8x - y = 30

-2y = x

Substitute for x

-8*(-2y) - y = 30

16y - y = 30

15y = 30

y = 30/15 = 2

Then x = -2y = -2*(2) = -4

Solution: (-4, 2), x= -4 and y =2