9z+8z-7z=-10

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Solution for 9z+8z-7z=-10 equation: 



9z+8z-7z=-10

We move all terms to the left:

9z+8z-7z-(-10)=0

We add all the numbers together, and all the variables

10z+10=0

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

10z=-10

z=-10/10

z=-1

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