9z=-4+7z

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Solution for 9z=-4+7z equation: 



9z=-4+7z

We move all terms to the left:

9z-(-4+7z)=0

We add all the numbers together, and all the variables

9z-(7z-4)=0

We get rid of parentheses

9z-7z+4=0

We add all the numbers together, and all the variables

2z+4=0

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

2z=-4

z=-4/2

z=-2

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