-15=-3z+3

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Solution for -15=-3z+3 equation: 



-15=-3z+3

We move all terms to the left:

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

We get rid of parentheses

3z-3-15=0

We add all the numbers together, and all the variables

3z-18=0

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

3z=18

z=18/3

z=6

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