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14040-50=12500+20x
We move all terms to the left:
14040-50-(12500+20x)=0
We add all the numbers together, and all the variables
-(20x+12500)+14040-50=0
We add all the numbers together, and all the variables
-(20x+12500)+13990=0
We get rid of parentheses
-20x-12500+13990=0
We add all the numbers together, and all the variables
-20x+1490=0
We move all terms containing x to the left, all other terms to the right
-20x=-1490
x=-1490/-20
x=74+1/2
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