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6n-18=(4n+2.1)
We move all terms to the left:
6n-18-((4n+2.1))=0
We calculate terms in parentheses: -((4n+2.1)), so:We get rid of parentheses
(4n+2.1)
We get rid of parentheses
4n+2.1
Back to the equation:
-(4n+2.1)
6n-4n-2.1-18=0
We add all the numbers together, and all the variables
2n-20.1=0
We move all terms containing n to the left, all other terms to the right
2n=20.1
n=20.1/2
n=10+0.1/2
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