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5(2+n)=91
We move all terms to the left:
5(2+n)-(91)=0
We add all the numbers together, and all the variables
5(n+2)-91=0
We multiply parentheses
5n+10-91=0
We add all the numbers together, and all the variables
5n-81=0
We move all terms containing n to the left, all other terms to the right
5n=81
n=81/5
n=16+1/5
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