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47.50=390x+17.50
We move all terms to the left:
47.50-(390x+17.50)=0
We add all the numbers together, and all the variables
-(390x+17.5)+47.50=0
We add all the numbers together, and all the variables
-(390x+17.5)+47.5=0
We get rid of parentheses
-390x-17.5+47.5=0
We add all the numbers together, and all the variables
-390x+30=0
We move all terms containing x to the left, all other terms to the right
-390x=-30
x=-30/-390
x=1/13
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