-2(a+4)=-8

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Solution for -2(a+4)=-8 equation: 



-2(a+4)=-8

We move all terms to the left:

-2(a+4)-(-8)=0

We add all the numbers together, and all the variables

-2(a+4)+8=0

We multiply parentheses

-2a-8+8=0

We add all the numbers together, and all the variables

-2a=0

a=0/-2

a=0

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