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Given that \(\begin{pmatrix} 1 & -3 \\ 1 & 4 \end{pm...

Given that (1314)(6P)=(326), find the value of P.

A.

-8

B.

-5

C.

4

D.

-3

Correct answer is D

(1314)(6P)=(326)

(1×6)+(3×P)=3

63P=33P=9

P=3