3x+9=9x-4

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Solution for 3x+9=9x-4 equation: 



3x+9=9x-4

We move all terms to the left:

3x+9-(9x-4)=0

We get rid of parentheses

3x-9x+4+9=0

We add all the numbers together, and all the variables

-6x+13=0

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

-6x=-13

x=-13/-6

x=2+1/6

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