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20/10=n/15
We move all terms to the left:
20/10-(n/15)=0
We add all the numbers together, and all the variables
-(+n/15)+20/10=0
We add all the numbers together, and all the variables
-(+n/15)+2=0
We get rid of parentheses
-n/15+2=0
We multiply all the terms by the denominator
-n+2*15=0
We add all the numbers together, and all the variables
-1n+30=0
We move all terms containing n to the left, all other terms to the right
-n=-30
n=-30/-1
n=+30
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