21+19z+7z=16+31z

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Solution for 21+19z+7z=16+31z equation: 



21+19z+7z=16+31z

We move all terms to the left:

21+19z+7z-(16+31z)=0

We add all the numbers together, and all the variables

19z+7z-(31z+16)+21=0

We add all the numbers together, and all the variables

26z-(31z+16)+21=0

We get rid of parentheses

26z-31z-16+21=0

We add all the numbers together, and all the variables

-5z+5=0

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

-5z=-5

z=-5/-5

z=1

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