-2z=7(z+9)

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Solution for -2z=7(z+9) equation: 



-2z=7(z+9)

We move all terms to the left:

-2z-(7(z+9))=0



We calculate terms in parentheses: -(7(z+9)), so:

7(z+9)

We multiply parentheses

7z+63

Back to the equation:

-(7z+63)



We get rid of parentheses

-2z-7z-63=0

We add all the numbers together, and all the variables

-9z-63=0

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

-9z=63

z=63/-9

z=-7

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