18z=-18+20z

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Solution for 18z=-18+20z equation: 



18z=-18+20z

We move all terms to the left:

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

We add all the numbers together, and all the variables

18z-(20z-18)=0

We get rid of parentheses

18z-20z+18=0

We add all the numbers together, and all the variables

-2z+18=0

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

-2z=-18

z=-18/-2

z=+9

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