3z+2=7z-18

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



3z+2=7z-18

We move all terms to the left:

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

We get rid of parentheses

3z-7z+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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