7z+8-4z=39

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Solution for 7z+8-4z=39 equation: 



7z+8-4z=39

We move all terms to the left:

7z+8-4z-(39)=0

We add all the numbers together, and all the variables

3z-31=0

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

3z=31

z=31/3

z=10+1/3

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