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2x+(x+2x)=88
We move all terms to the left:
2x+(x+2x)-(88)=0
We add all the numbers together, and all the variables
2x+(+3x)-88=0
We get rid of parentheses
2x+3x-88=0
We add all the numbers together, and all the variables
5x-88=0
We move all terms containing x to the left, all other terms to the right
5x=88
x=88/5
x=17+3/5
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