7z+2=3z-18

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Solution for 7z+2=3z-18 equation: 



7z+2=3z-18

We move all terms to the left:

7z+2-(3z-18)=0

We get rid of parentheses

7z-3z+18+2=0

We add all the numbers together, and all the variables

4z+20=0

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

4z=-20

z=-20/4

z=-5

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