-9z-15=9+4z

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Solution for -9z-15=9+4z equation: 



-9z-15=9+4z

We move all terms to the left:

-9z-15-(9+4z)=0

We add all the numbers together, and all the variables

-9z-(4z+9)-15=0

We get rid of parentheses

-9z-4z-9-15=0

We add all the numbers together, and all the variables

-13z-24=0

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

-13z=24

z=24/-13

z=-1+11/13

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