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X+5=-2X-8
We move all terms to the left:
X+5-(-2X-8)=0
We get rid of parentheses
X+2X+8+5=0
We add all the numbers together, and all the variables
3X+13=0
We move all terms containing X to the left, all other terms to the right
3X=-13
X=-13/3
X=-4+1/3
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