Solve the system by using the Gauss-Jordan method.
$$\begin{aligned}
- 3 x + y & = - 9 \
- 9 x + 3 y & = 4
\end{aligned}$$
A) $( 1 , - 6 )$
B) $( 0 , - 9 )$
C) No solution; inconsistent system
D) Infinitely many solutions; $\{ ( x , y ) \mid y = 3 x - 9 \}$; dependent system

Question

Quizplus · Accepted Answer

The system is inconsistent because the second equation is a multiple of the first, but with a different constant term, leading to a contradiction.

Solve the System by Using the Gauss-Jordan Method −3x+y=−9−9x+3y=4\begin{aligned}- 3 x + y & = - 9 \\- 9 x + 3 y & = 4\end{aligned}−3x+y−9x+3y​=−9=4​

Solve the System by Using the Gauss-Jordan Method $\begin{aligned}- 3 x + y & = - 9 \\- 9 x + 3 y & = 4\end{aligned}$