7z-12=20

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Solution for 7z-12=20 equation: 



7z-12=20

We move all terms to the left:

7z-12-(20)=0

We add all the numbers together, and all the variables

7z-32=0

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

7z=32

z=32/7

z=4+4/7

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