Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the
inverse doesn't exist.
-$ -2 x-6 y=-2 $
$ 2 x-y=-5 $
A) $ (-1,2) $
B) $ (1,-2) $
C) $ (-2,1) $
D) $ (2,-1) $

Question

Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the
inverse doesn't exist.
-$ -2 x-6 y=-2 $
 $ 2 x-y=-5 $
A) $ (-1,2) $
B) $ (1,-2) $
C) $ (-2,1) $
D) $ (2,-1) $

Quizplus · Accepted Answer

The Answer of Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the
inverse doesn't exist.
-$ -2 x-6 y=-2 $
 $ 2 x-y=-5 $
A) $ (-1,2) $
B) $ (1,-2) $
C) $ (-2,1) $
D) $ (2,-1) $

Solve the System of Equations by Using the Inverse of the Coefficient