(9z+8)-(2z-7)=64

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Solution for (9z+8)-(2z-7)=64 equation: 



(9z+8)-(2z-7)=64

We move all terms to the left:

(9z+8)-(2z-7)-(64)=0

We get rid of parentheses

9z-2z+8+7-64=0

We add all the numbers together, and all the variables

7z-49=0

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

7z=49

z=49/7

z=7

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