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-2(x-19)=-30
We move all terms to the left:
-2(x-19)-(-30)=0
We add all the numbers together, and all the variables
-2(x-19)+30=0
We multiply parentheses
-2x+38+30=0
We add all the numbers together, and all the variables
-2x+68=0
We move all terms containing x to the left, all other terms to the right
-2x=-68
x=-68/-2
x=+34
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