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2n+n/2=15
We move all terms to the left:
2n+n/2-(15)=0
We multiply all the terms by the denominator
2n*2+n-15*2=0
We add all the numbers together, and all the variables
n+2n*2-30=0
Wy multiply elements
n+4n-30=0
We add all the numbers together, and all the variables
5n-30=0
We move all terms containing n to the left, all other terms to the right
5n=30
n=30/5
n=6
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