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X+(3+X)+2X=37
We move all terms to the left:
X+(3+X)+2X-(37)=0
We add all the numbers together, and all the variables
X+(X+3)+2X-37=0
We add all the numbers together, and all the variables
3X+(X+3)-37=0
We get rid of parentheses
3X+X+3-37=0
We add all the numbers together, and all the variables
4X-34=0
We move all terms containing X to the left, all other terms to the right
4X=34
X=34/4
X=8+1/2
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