-12=5+9z

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Solution for -12=5+9z equation: 



-12=5+9z

We move all terms to the left:

-12-(5+9z)=0

We add all the numbers together, and all the variables

-(9z+5)-12=0

We get rid of parentheses

-9z-5-12=0

We add all the numbers together, and all the variables

-9z-17=0

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

-9z=17

z=17/-9

z=-1+8/9

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