Given: (1) y = -8
(2) y = -2x - 12
Using substitution method, we will solve this by following these steps.
Step 1: Substitute (1) to (2)
(1) y = -8
(2) y = -2x - 12
-8 = -2x - 12
Step 2: Add 12 to both sides of the equation
-8 + 12 = -2x - 12 + 12
4 = -2x
Ste 3: Divide both sides with -2
4 / 2 = -2x / -2
2 = x
x = 2
Therefore, the solution of the system is x = 2 and y = -8
