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X+(2X+1)=60
We move all terms to the left:
X+(2X+1)-(60)=0
We get rid of parentheses
X+2X+1-60=0
We add all the numbers together, and all the variables
3X-59=0
We move all terms containing X to the left, all other terms to the right
3X=59
X=59/3
X=19+2/3
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