3z+15=-2z

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Solution for 3z+15=-2z equation: 



3z+15=-2z

We move all terms to the left:

3z+15-(-2z)=0

We get rid of parentheses

3z+2z+15=0

We add all the numbers together, and all the variables

5z+15=0

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

5z=-15

z=-15/5

z=-3

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