-7+3z=-9z-7

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Solution for -7+3z=-9z-7 equation: 



-7+3z=-9z-7

We move all terms to the left:

-7+3z-(-9z-7)=0

We get rid of parentheses

3z+9z+7-7=0

We add all the numbers together, and all the variables

12z=0

z=0/12

z=0

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