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Old Oct 10th, 2012, 04:03 AM   #41
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Re: 6÷2(2+1)=?

Setting the equation equal to 1 and solving for k:
Quote:
6/k(2+1) = 1
k(2+1) = 6*1
k(3) = 6
k = 6/(3)
k = 2
Setting the equation equal to 9 and solving for k:
Quote:
6/k(2+1) = 9
k(2+1) = 6*9
k(3) = 54
k = 54/(3)
k = 18
k = 2 in the OP, ∴ the solution is 1.
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