|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|
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