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X+(X+30)+2X=8
We move all terms to the left:
X+(X+30)+2X-(8)=0
We add all the numbers together, and all the variables
3X+(X+30)-8=0
We get rid of parentheses
3X+X+30-8=0
We add all the numbers together, and all the variables
4X+22=0
We move all terms containing X to the left, all other terms to the right
4X=-22
X=-22/4
X=-5+1/2
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