[a-b b+c] = [8 1] [3d+c 2a-4d] [7 6] I know that since the matrices are equal: a-b=8 b+c=1 3d+c=7 2a-4d=6 but not sure where to go from here
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Originally Posted by cottekr [a-b b+c] = [8 1] [3d+c 2a-4d] [7 6] I know that since the matrices are equal: a-b=8 b+c=1 3d+c=7 2a-4d=6 but not sure where to go from here You have made a good start. From the first equation From the second From the third (and second) Now looking at the 4th equation we have new information for and so lets use it in the 4th. Now expand and solve for
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