SOLUTION: I AM IN NEED OF HELP ON LOCATING THE SOLUTION TO THIS PROBLEM USEING THE MATRIX INVERSION SYSTEM. 3X-4Y=-1 -2X+3Y=3

Algebra ->  Matrices-and-determiminant -> SOLUTION: I AM IN NEED OF HELP ON LOCATING THE SOLUTION TO THIS PROBLEM USEING THE MATRIX INVERSION SYSTEM. 3X-4Y=-1 -2X+3Y=3      Log On


   

Question 381472: I AM IN NEED OF HELP ON LOCATING THE SOLUTION TO THIS PROBLEM USEING THE MATRIX INVERSION SYSTEM.
3X-4Y=-1
-2X+3Y=3
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
[A]=%28matrix%282%2C2%2C3%2C-4%2C-2%2C3%29%29
[x]=%28matrix%282%2C1%2Cx%2Cy%29%29
[b]=%28matrix%282%2C1%2C-1%2C3%29%29
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.
[A][x]=[b]
[x]=[A]inv[b]
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det[A]=3(3)-(-2)(-4)=9-8=1
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.
[A]inv=%28matrix%282%2C2%2C3%2C4%2C2%2C3%29%29
.
.
[x]=%28matrix%282%2C1%2C9%2C7%29%29