SOLUTION: Hi! I have a question about solving systems using inverse matrix. (x) (-2 1) (8) (-10) (y) STEP1 = (3/2 -1/2) (6) STEP2 = ( 9) STEP3 How to

Question 109176: Hi!
I have a question about solving systems using inverse matrix.
(x) (-2 1) (8) (-10)
(y) STEP1 = (3/2 -1/2) (6) STEP2 = ( 9) STEP3
How to get from step 2 to step 3?
Thanks!
Anna

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If you have the matrix and

Then when you multiply A and B, you get

So in this problem, they multiplied the two matrices to get the answer

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