15z-20=12z+19+18

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Solution for 15z-20=12z+19+18 equation: 



15z-20=12z+19+18

We move all terms to the left:

15z-20-(12z+19+18)=0

We add all the numbers together, and all the variables

15z-(12z+37)-20=0

We get rid of parentheses

15z-12z-37-20=0

We add all the numbers together, and all the variables

3z-57=0

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

3z=57

z=57/3

z=19

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