SOLUTION: Please help me solve this problem. I previously had help on it but it I wrote down the wrong equation. Use Inverse to Solve Linear System. 3 x -7 = -16

Question 18434: Please help me solve this problem. I previously had help on it but it I wrote down the wrong equation. Use Inverse to Solve Linear System.
3 x -7 = -16
-2x + 4y =8

Thanks for your time.
KaT
Answer by Alwayscheerful(414) (Show Source): You can put this solution on YOUR website!
Put your equations into AX=B. Then solve for X!
HINT:
So, this is inverse form.

Since you can't divide by matrices, you must take the inverse of the matrix, in other words, make it to the power of -1.

Then you can use your calculator to solve
The inverse of is
Then you multiply it with the 2x1 matrix
You should end up with as your final matrix.
So your answer would be x=4, y=4
Hope this helps!
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