The line segment \( \mathrm{PQ} \) joining the point \( \mathrm{P}(3,-4) \) and \( \mathrm{Q}(1,... VIDEO
The line segment \( \mathrm{PQ} \) joining the point \( \mathrm{P}(3,-4) \) and \( \mathrm{Q}(1,2) \) is trisected at the points \( \mathrm{M} \) and \( \mathrm{N} \). If the coordinate of \( \mathrm{M} \) and \( \mathrm{N} \) are \( (\mathrm{p},-2) \) and \( \left(\frac{5}{3}, \mathrm{q}\right) \) respectively. Find the value of \( 3 p+q \).
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