9=(8+7z)

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Solution for 9=(8+7z) equation: 



9=(8+7z)

We move all terms to the left:

9-((8+7z))=0

We add all the numbers together, and all the variables

-((7z+8))+9=0



We calculate terms in parentheses: -((7z+8)), so:

(7z+8)

We get rid of parentheses

7z+8

Back to the equation:

-(7z+8)



We get rid of parentheses

-7z-8+9=0

We add all the numbers together, and all the variables

-7z+1=0

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

-7z=-1

z=-1/-7

z=1/7

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