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2n+3(1+n)=4(n-1)
We move all terms to the left:
2n+3(1+n)-(4(n-1))=0
We add all the numbers together, and all the variables
2n+3(n+1)-(4(n-1))=0
We multiply parentheses
2n+3n-(4(n-1))+3=0
We calculate terms in parentheses: -(4(n-1)), so:We add all the numbers together, and all the variables
4(n-1)
We multiply parentheses
4n-4
Back to the equation:
-(4n-4)
5n-(4n-4)+3=0
We get rid of parentheses
5n-4n+4+3=0
We add all the numbers together, and all the variables
n+7=0
We move all terms containing n to the left, all other terms to the right
n=-7
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