Answer:
x = 3
Step-by-step explanation:
4(x - 11) + 8x + 8 = 0
Distribute the 4.
4x - 44 + 8x + 8 = 0
Combine like terms.
4x + 8x - 44 + 8 = 0
12x - 36 = 0
Add 36 to both sides.
12x = 36
Divide both sides by 12.
x = 3
Proof:
4(x - 11) + 8x + 8 = 0
Substitute value.
4(3 - 11) + 8(3) + 8 = 0
Subtract inside the parenthesis.
4(-8) + 8(3) + 8 = 0
Multiply.
-32 + 24 + 8 = 0
Add.
-8 + 8 = 0
0 = 0.
