SOLUTION: Write the system of equations as an augmented matrix. Then solve for x and y. 5x-4y=12 -5x+3y=9

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Question 1058482: Write the system of equations as an augmented matrix. Then solve for x and y.
5x-4y=12
-5x+3y=9

Found 2 solutions by Fombitz, Alan3354:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!

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I made a table in EXCEL (with row operation explanations in the first column),
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Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
5x-4y=12
-5x+3y=9
------------- Add
-y = 21
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Not a good example for using a matrix.

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