Question

Solve by substitution
x=-3y-2
-4x-5y=8

Answer 1

the solution is( -2,0) did that in my head

Answer 2

x = -3y - 2
-4x - 5y=8

-4(-3y - 2) -5y = 8
12y + 8 - 5y = 8
7y + 8 = 8
7y = 0
y = 0

x= -3(0) - 2
x = -2

solutions (-2,0)