Q.

If A−2B=1    53    7 and 2A−3B=−2    50    7, then matrix B is equal to

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a

−4    −5−6    −7

b

0    6−3    7

c

2    −13    2

d

6    −10    1

answer is A.

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Detailed Solution

We have B=(2A−3B)−2(A−2B)=−4    −5−6    −7
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