18z+6+15=20z-7

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Solution for 18z+6+15=20z-7 equation: 



18z+6+15=20z-7

We move all terms to the left:

18z+6+15-(20z-7)=0

We add all the numbers together, and all the variables

18z-(20z-7)+21=0

We get rid of parentheses

18z-20z+7+21=0

We add all the numbers together, and all the variables

-2z+28=0

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

-2z=-28

z=-28/-2

z=+14

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