SOLUTION: Matrices Hello I'm needing some help with my homework that asks me to use the matrices to solve each system of equations. If a system has no solution, so indicate. {2x-3y=16

Algebra ->  Equations -> SOLUTION: Matrices Hello I'm needing some help with my homework that asks me to use the matrices to solve each system of equations. If a system has no solution, so indicate. {2x-3y=16       Log On


   



Question 182076: Matrices
Hello I'm needing some help with my homework that asks me to use the matrices to solve each system of equations. If a system has no solution, so indicate.
{2x-3y=16
-4x+y=-22
thanks
Haley

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
{2x-3y=16
-4x+y=-22
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|2 -3 -16|
|-4 1 +22| = 0
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DET = 2-12
DET = -10
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x*DET = -66+16
x = 5
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-y*DET = -44+64 = 20
y = -2