15=3(z+3)

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Solution for 15=3(z+3) equation: 



15=3(z+3)

We move all terms to the left:

15-(3(z+3))=0



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

3(z+3)

We multiply parentheses

3z+9

Back to the equation:

-(3z+9)



We get rid of parentheses

-3z-9+15=0

We add all the numbers together, and all the variables

-3z+6=0

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

-3z=-6

z=-6/-3

z=+2

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