12-3z=3(z-4)

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Solution for 12-3z=3(z-4) equation: 



12-3z=3(z-4)

We move all terms to the left:

12-3z-(3(z-4))=0



We calculate terms in parentheses: -(3(z-4)), so:

3(z-4)

We multiply parentheses

3z-12

Back to the equation:

-(3z-12)



We get rid of parentheses

-3z-3z+12+12=0

We add all the numbers together, and all the variables

-6z+24=0

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

-6z=-24

z=-24/-6

z=+4

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