70=-7(-4-2z)

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Solution for 70=-7(-4-2z) equation: 



70=-7(-4-2z)

We move all terms to the left:

70-(-7(-4-2z))=0

We add all the numbers together, and all the variables

-(-7(-2z-4))+70=0



We calculate terms in parentheses: -(-7(-2z-4)), so:

-7(-2z-4)

We multiply parentheses

14z+28

Back to the equation:

-(14z+28)



We get rid of parentheses

-14z-28+70=0

We add all the numbers together, and all the variables

-14z+42=0

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

-14z=-42

z=-42/-14

z=+3

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