Solve Systems of Linear Equations in Three Variables
-$$\begin{array} { l }
x - y + 3 z = 13 \
5 x + z = 5 \
x + 2 y + z = 9
\end{array}$$
A) $\{ ( 0,2,5 ) \}$
B) $\{ ( 2,0,5 ) \}$
C) $\{ ( 5,2,0 ) \}$
D) $\{ ( 5,0,2 ) \}$

Question

Solve Systems of Linear Equations in Three Variables
-$$\begin{array} { l } 
x - y + 3 z = 13 \
5 x + z = 5 \
x + 2 y + z = 9
\end{array}$$
A) $\{ ( 0,2,5 ) \}$
B) $\{ ( 2,0,5 ) \}$
C) $\{ ( 5,2,0 ) \}$
D) $\{ ( 5,0,2 ) \}$

Quizplus · Accepted Answer

Explanation:The correct answer is A because the system of equations has only one solution, which is (0, 2, 5).

Solve Systems of Linear Equations in Three Variables - x−y+3z=135x+z=5x+2y+z=9\begin{array} { l } x - y + 3 z = 13 \\5 x + z = 5 \\x + 2 y + z = 9\end{array}x−y+3z=135x+z=5x+2y+z=9​

Solve Systems of Linear Equations in Three Variables
- $\begin{array} { l } x - y + 3 z = 13 \\5 x + z = 5 \\x + 2 y + z = 9\end{array}$