9-4z=-2-9-9z

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Solution for 9-4z=-2-9-9z equation: 



9-4z=-2-9-9z

We move all terms to the left:

9-4z-(-2-9-9z)=0

We add all the numbers together, and all the variables

-4z-(-9z-11)+9=0

We get rid of parentheses

-4z+9z+11+9=0

We add all the numbers together, and all the variables

5z+20=0

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

5z=-20

z=-20/5

z=-4

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