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247.50=22.50+30x
We move all terms to the left:
247.50-(22.50+30x)=0
We add all the numbers together, and all the variables
-(30x+22.5)+247.50=0
We add all the numbers together, and all the variables
-(30x+22.5)+247.5=0
We get rid of parentheses
-30x-22.5+247.5=0
We add all the numbers together, and all the variables
-30x+225=0
We move all terms containing x to the left, all other terms to the right
-30x=-225
x=-225/-30
x=7+1/2
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