CEMC Pascal, 2006

Number theory Difficulty 2.0 Junior Find the answer Canada

In the subtraction shown, $M$ and $N$ each represent a single digit, where $\overline{M4} - \overline{3N} = 16$ . What is the value of $M+N$ ?

(A) $14$ (B) $12$ (C) $15$ (D) $13$ (E) $11$

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