12z-4+3z-15z=15z+66-50z

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Solution for 12z-4+3z-15z=15z+66-50z equation: 



12z-4+3z-15z=15z+66-50z

We move all terms to the left:

12z-4+3z-15z-(15z+66-50z)=0

We add all the numbers together, and all the variables

12z+3z-15z-(-35z+66)-4=0

We add all the numbers together, and all the variables

-(-35z+66)-4=0

We get rid of parentheses

35z-66-4=0

We add all the numbers together, and all the variables

35z-70=0

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

35z=70

z=70/35

z=2

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