-13+7z=9

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Solution for -13+7z=9 equation: 



-13+7z=9

We move all terms to the left:

-13+7z-(9)=0

We add all the numbers together, and all the variables

7z-22=0

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

7z=22

z=22/7

z=3+1/7

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