-7+7z=9+5z-2

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Solution for -7+7z=9+5z-2 equation: 



-7+7z=9+5z-2

We move all terms to the left:

-7+7z-(9+5z-2)=0

We add all the numbers together, and all the variables

7z-(5z+7)-7=0

We get rid of parentheses

7z-5z-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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