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100+(n-2)2=149
We move all terms to the left:
100+(n-2)2-(149)=0
We add all the numbers together, and all the variables
(n-2)2-49=0
We multiply parentheses
2n-4-49=0
We add all the numbers together, and all the variables
2n-53=0
We move all terms containing n to the left, all other terms to the right
2n=53
n=53/2
n=26+1/2
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