2z+3=-z-18

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Solution for 2z+3=-z-18 equation: 



2z+3=-z-18

We move all terms to the left:

2z+3-(-z-18)=0

We add all the numbers together, and all the variables

2z-(-1z-18)+3=0

We get rid of parentheses

2z+1z+18+3=0

We add all the numbers together, and all the variables

3z+21=0

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

3z=-21

z=-21/3

z=-7

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