-7z=-9z-10

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Solution for -7z=-9z-10 equation: 



-7z=-9z-10

We move all terms to the left:

-7z-(-9z-10)=0

We get rid of parentheses

-7z+9z+10=0

We add all the numbers together, and all the variables

2z+10=0

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

2z=-10

z=-10/2

z=-5

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