3x+9=-2x-9

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



3x+9=-2x-9

We move all terms to the left:

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

We get rid of parentheses

3x+2x+9+9=0

We add all the numbers together, and all the variables

5x+18=0

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

5x=-18

x=-18/5

x=-3+3/5

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