7z+3-4z=9

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Solution for 7z+3-4z=9 equation: 



7z+3-4z=9

We move all terms to the left:

7z+3-4z-(9)=0

We add all the numbers together, and all the variables

3z-6=0

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

3z=6

z=6/3

z=2

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