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

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



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

We move all terms to the left:

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

We get rid of parentheses

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



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

(7z+7)

We get rid of parentheses

7z+7

Back to the equation:

-(7z+7)



We get rid of parentheses

9z-7z-7-7=0

We add all the numbers together, and all the variables

2z-14=0

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

2z=14

z=14/2

z=7

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