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n=(n+1)+(n+2)=54
We move all terms to the left:
n-((n+1)+(n+2))=0
We calculate terms in parentheses: -((n+1)+(n+2)), so:We get rid of parentheses
(n+1)+(n+2)
We get rid of parentheses
n+n+1+2
We add all the numbers together, and all the variables
2n+3
Back to the equation:
-(2n+3)
n-2n-3=0
We add all the numbers together, and all the variables
-1n-3=0
We move all terms containing n to the left, all other terms to the right
-n=3
n=3/-1
n=-3
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