2z+9=z-3

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Solution for 2z+9=z-3 equation: 



2z+9=z-3

We move all terms to the left:

2z+9-(z-3)=0

We get rid of parentheses

2z-z+3+9=0

We add all the numbers together, and all the variables

z+12=0

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

z=-12

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