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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -((-1x+9)+2x), so:

(-1x+9)+2x

We add all the numbers together, and all the variables

2x+(-1x+9)

We get rid of parentheses

2x-1x+9

We add all the numbers together, and all the variables

x+9

Back to the equation:

-(x+9)



We get rid of parentheses

3x-x-9+7=0

We add all the numbers together, and all the variables

2x-2=0

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

2x=2

x=2/2

x=1

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