-80=-8(2+2z)

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Solution for -80=-8(2+2z) equation: 



-80=-8(2+2z)

We move all terms to the left:

-80-(-8(2+2z))=0

We add all the numbers together, and all the variables

-(-8(2z+2))-80=0



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

-8(2z+2)

We multiply parentheses

-16z-16

Back to the equation:

-(-16z-16)



We get rid of parentheses

16z+16-80=0

We add all the numbers together, and all the variables

16z-64=0

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

16z=64

z=64/16

z=4

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