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4n - 2n = 4 .
Before we continue with the solution to this problem,
it will help us to remember that
4 cows - 2 cows = 2 cows
4 beers - 2 beers = 2 beers
4 books - 2 books = 2 books
4 dollars - 2 dollars = 2 dollars.
Similarly, on the left side of the equation, 4n-2n = 2n.
So now the equation actually says
2n = 4
Divide each side by 2:
n = 2
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What is 4n plus 13 equals 1?
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