80=10(z+7)

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Solution for 80=10(z+7) equation: 



80=10(z+7)

We move all terms to the left:

80-(10(z+7))=0



We calculate terms in parentheses: -(10(z+7)), so:

10(z+7)

We multiply parentheses

10z+70

Back to the equation:

-(10z+70)



We get rid of parentheses

-10z-70+80=0

We add all the numbers together, and all the variables

-10z+10=0

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

-10z=-10

z=-10/-10

z=1

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