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X=-3X+19
We move all terms to the left:
X-(-3X+19)=0
We get rid of parentheses
X+3X-19=0
We add all the numbers together, and all the variables
4X-19=0
We move all terms containing X to the left, all other terms to the right
4X=19
X=19/4
X=4+3/4
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