7z+4-9z=18

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Solution for 7z+4-9z=18 equation: 



7z+4-9z=18

We move all terms to the left:

7z+4-9z-(18)=0

We add all the numbers together, and all the variables

-2z-14=0

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

-2z=14

z=14/-2

z=-7

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