

MCQOPTIONS
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1. |
If \(\begin{bmatrix} 2x + y & 4x \\\ 5x - 7 & 4x \end{bmatrix} = \begin{bmatrix} 7 & 7y -13 \\\ y & x+6 \end{bmatrix}\), then x + y = |
A. | 3 |
B. | 4 |
C. | 5 |
D. | 6 |
Answer» D. 6 | |