4z+15=-z

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Solution for 4z+15=-z equation: 



4z+15=-z

We move all terms to the left:

4z+15-(-z)=0

We add all the numbers together, and all the variables

4z-(-1z)+15=0

We get rid of parentheses

4z+1z+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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