-18+2-15z=20-9z

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Solution for -18+2-15z=20-9z equation: 



-18+2-15z=20-9z

We move all terms to the left:

-18+2-15z-(20-9z)=0

We add all the numbers together, and all the variables

-15z-(-9z+20)-18+2=0

We add all the numbers together, and all the variables

-15z-(-9z+20)-16=0

We get rid of parentheses

-15z+9z-20-16=0

We add all the numbers together, and all the variables

-6z-36=0

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

-6z=36

z=36/-6

z=-6

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