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-19-5x=2x+12
We move all terms to the left:
-19-5x-(2x+12)=0
We get rid of parentheses
-5x-2x-12-19=0
We add all the numbers together, and all the variables
-7x-31=0
We move all terms containing x to the left, all other terms to the right
-7x=31
x=31/-7
x=-4+3/7
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