-9z+7=-7+9z

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



-9z+7=-7+9z

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-9z-9z+7+7=0

We add all the numbers together, and all the variables

-18z+14=0

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

-18z=-14

z=-14/-18

z=7/9

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