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-2x-5(x+3)=12x+20
We move all terms to the left:
-2x-5(x+3)-(12x+20)=0
We multiply parentheses
-2x-5x-(12x+20)-15=0
We get rid of parentheses
-2x-5x-12x-20-15=0
We add all the numbers together, and all the variables
-19x-35=0
We move all terms containing x to the left, all other terms to the right
-19x=35
x=35/-19
x=-1+16/19
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