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15=5(n+3)
We move all terms to the left:
15-(5(n+3))=0
We calculate terms in parentheses: -(5(n+3)), so:We get rid of parentheses
5(n+3)
We multiply parentheses
5n+15
Back to the equation:
-(5n+15)
-5n-15+15=0
We add all the numbers together, and all the variables
-5n=0
n=0/-5
n=0
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