Answer:
1) Given −2(x+1)=8
2) Division Property of Equality (dividing both sides of the equation by -2)
3) [tex]\frac{-2(x+1)}{-2}=\frac{8}{-2}[/tex]
4) Simplifying
5) x+1=-4
6) Substraction Property of Equality (substracting 1 on both sides of the equation)
7) x+1−1=−4−1
8) Simplifying
9) x=-5