15=2z-3

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Solution for 15=2z-3 equation: 



15=2z-3

We move all terms to the left:

15-(2z-3)=0

We get rid of parentheses

-2z+3+15=0

We add all the numbers together, and all the variables

-2z+18=0

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

-2z=-18

z=-18/-2

z=+9

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