3x+9+2x=x-2x+7

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Solution for 3x+9+2x=x-2x+7 equation: 



3x+9+2x=x-2x+7

We move all terms to the left:

3x+9+2x-(x-2x+7)=0

We add all the numbers together, and all the variables

3x+2x-(-1x+7)+9=0

We add all the numbers together, and all the variables

5x-(-1x+7)+9=0

We get rid of parentheses

5x+1x-7+9=0

We add all the numbers together, and all the variables

6x+2=0

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

6x=-2

x=-2/6

x=-1/3

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