3(z-15)=15

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



3(z-15)=15

We move all terms to the left:

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

We multiply parentheses

3z-45-15=0

We add all the numbers together, and all the variables

3z-60=0

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

3z=60

z=60/3

z=20

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