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120=(n-3)250
We move all terms to the left:
120-((n-3)250)=0
We calculate terms in parentheses: -((n-3)250), so:We get rid of parentheses
(n-3)250
We multiply parentheses
250n-750
Back to the equation:
-(250n-750)
-250n+750+120=0
We add all the numbers together, and all the variables
-250n+870=0
We move all terms containing n to the left, all other terms to the right
-250n=-870
n=-870/-250
n=3+12/25
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