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150/1=x/30
We move all terms to the left:
150/1-(x/30)=0
We add all the numbers together, and all the variables
-(+x/30)+150/1=0
We add all the numbers together, and all the variables
-(+x/30)=0
We get rid of parentheses
-x/30=0
We multiply all the terms by the denominator
-x=0
x=0/-1
x=0
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