-8=-2(a+1)

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Solution for -8=-2(a+1) equation: 



-8=-2(a+1)

We move all terms to the left:

-8-(-2(a+1))=0



We calculate terms in parentheses: -(-2(a+1)), so:

-2(a+1)

We multiply parentheses

-2a-2

Back to the equation:

-(-2a-2)



We get rid of parentheses

2a+2-8=0

We add all the numbers together, and all the variables

2a-6=0

We move all terms containing a to the left, all other terms to the right

2a=6

a=6/2

a=3

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