9z+8=7z-9

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Solution for 9z+8=7z-9 equation: 



9z+8=7z-9

We move all terms to the left:

9z+8-(7z-9)=0

We get rid of parentheses

9z-7z+9+8=0

We add all the numbers together, and all the variables

2z+17=0

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

2z=-17

z=-17/2

z=-8+1/2

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