-2-20=2z+9z

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



-2-20=2z+9z

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(+11z)-2-20=0

We add all the numbers together, and all the variables

-(+11z)-22=0

We get rid of parentheses

-11z-22=0

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

-11z=22

z=22/-11

z=-2

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