-18=15z-9(2z-3)

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Solution for -18=15z-9(2z-3) equation: 



-18=15z-9(2z-3)

We move all terms to the left:

-18-(15z-9(2z-3))=0



We calculate terms in parentheses: -(15z-9(2z-3)), so:

15z-9(2z-3)

We multiply parentheses

15z-18z+27

We add all the numbers together, and all the variables

-3z+27

Back to the equation:

-(-3z+27)



We get rid of parentheses

3z-27-18=0

We add all the numbers together, and all the variables

3z-45=0

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

3z=45

z=45/3

z=15

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