|3 6| |x| |2|

x =

|2 7| |y| |3|

a. |1/3 1/6| b. |1/2| c. |7/9 -6/9| d. |1/2 1/3|

|1/2 1/7| |1/3| |-2/9 3/9|

|3 6| |x| |2|

x =

|2 7| |y| |3|

a. |1/3 1/6| b. |1/2| c. |7/9 -6/9| d. |1/2 1/3|

|1/2 1/7| |1/3| |-2/9 3/9|

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Robert gave you the right answer in terms of solutions for x and y.

The matrix that your problem is asking for is given by

| 7/9 -6/9|

|-2/9 3/9 |

i.e. your answer is (C)

Using inverse matrix, the answer is (-4/9, 5/9).

|3 6| ^{-1} |2|...........|-4/9|

............*......... =

|2 7| |3|............|5/9|

## Comments

so what is it answer a? b? c? or d?

|3 6|

^{-1}|2 7|

=

|7 -6|

|-2 3|/(3*7-6*2)

= c