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4+(n+1)+2n=22
We move all terms to the left:
4+(n+1)+2n-(22)=0
We add all the numbers together, and all the variables
2n+(n+1)-18=0
We get rid of parentheses
2n+n+1-18=0
We add all the numbers together, and all the variables
3n-17=0
We move all terms containing n to the left, all other terms to the right
3n=17
n=17/3
n=5+2/3
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