3x+9=-9x=

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



3x+9=-9x=

We move all terms to the left:

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

We get rid of parentheses

3x+9x+9=0

We add all the numbers together, and all the variables

12x+9=0

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

12x=-9

x=-9/12

x=-3/4

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