2z+12=8z-30

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Solution for 2z+12=8z-30 equation: 



2z+12=8z-30

We move all terms to the left:

2z+12-(8z-30)=0

We get rid of parentheses

2z-8z+30+12=0

We add all the numbers together, and all the variables

-6z+42=0

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

-6z=-42

z=-42/-6

z=+7

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