Problem Solving (PS) | Re: If N = 5/7(M - 12), and if N = 280, then M =

\(N = \frac{5}{7}(M - 12)\)

Or ,\(280 = \frac{5}{7}(M - 12)\)

Or,\(56 = \frac{(M - 12)}{7}\)

Or,\(392 = M - 12\)

Or, \(M = 404\), Answer must be (D)
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