-20+3z=-7z+20

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Solution for -20+3z=-7z+20 equation: 



-20+3z=-7z+20

We move all terms to the left:

-20+3z-(-7z+20)=0

We get rid of parentheses

3z+7z-20-20=0

We add all the numbers together, and all the variables

10z-40=0

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

10z=40

z=40/10

z=4

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