128=-4a+4(-2a+8)

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Solution for 128=-4a+4(-2a+8) equation: 



128=-4a+4(-2a+8)

We move all terms to the left:

128-(-4a+4(-2a+8))=0



We calculate terms in parentheses: -(-4a+4(-2a+8)), so:

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

We multiply parentheses

-4a-8a+32

We add all the numbers together, and all the variables

-12a+32

Back to the equation:

-(-12a+32)



We get rid of parentheses

12a-32+128=0

We add all the numbers together, and all the variables

12a+96=0

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

12a=-96

a=-96/12

a=-8

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