9z-77=-5z-7

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Solution for 9z-77=-5z-7 equation: 



9z-77=-5z-7

We move all terms to the left:

9z-77-(-5z-7)=0

We get rid of parentheses

9z+5z+7-77=0

We add all the numbers together, and all the variables

14z-70=0

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

14z=70

z=70/14

z=5

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