20-8z=-7z

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Solution for 20-8z=-7z equation: 



20-8z=-7z

We move all terms to the left:

20-8z-(-7z)=0

We get rid of parentheses

-8z+7z+20=0

We add all the numbers together, and all the variables

-1z+20=0

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

-z=-20

z=-20/-1

z=+20

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