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-x-10(19)-2x=-19
We move all terms to the left:
-x-10(19)-2x-(-19)=0
We add all the numbers together, and all the variables
-3x-1000=0
We move all terms containing x to the left, all other terms to the right
-3x=1000
x=1000/-3
x=-333+1/3
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