2z+5z=31

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Solution for 2z+5z=31 equation: 



2z+5z=31

We move all terms to the left:

2z+5z-(31)=0

We add all the numbers together, and all the variables

7z-31=0

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

7z=31

z=31/7

z=4+3/7

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