-18=3(z+-10)

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Solution for -18=3(z+-10) equation: 



-18=3(z+-10)

We move all terms to the left:

-18-(3(z+-10))=0

We add all the numbers together, and all the variables

-(3(z-10))-18=0



We calculate terms in parentheses: -(3(z-10)), so:

3(z-10)

We multiply parentheses

3z-30

Back to the equation:

-(3z-30)



We get rid of parentheses

-3z+30-18=0

We add all the numbers together, and all the variables

-3z+12=0

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

-3z=-12

z=-12/-3

z=+4

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