Solve the system using the inverse method.
-$$\left\{ \begin{array} { r }
2 x + 4 y - 5 z = - 8 \
x + 5 y + 2 z = - 1 \
3 x + 3 y + 3 z = 15
\end{array} \right.$$
A) x = 5, y = 2, z = -2
B) x = -5, y = -2, z = -2
C) x = 2, y = 5, z = 2
D) x = 5, y = -2, z = 2

Question

Solve the system using the inverse method.
-$$\left\{ \begin{array} { r } 
2 x + 4 y - 5 z = - 8 \
x + 5 y + 2 z = - 1 \
3 x + 3 y + 3 z = 15
\end{array} \right.$$
A) x = 5, y = 2, z = -2
B) x = -5, y = -2, z = -2
C) x = 2, y = 5, z = 2
D) x = 5, y = -2, z = 2

Quizplus · Accepted Answer

Using the inverse method, the solution to the system is x = 5, y = -2, z = 2.

Solve the System Using the Inverse Method {2x+4y−5z=−8x+5y+2z=−13x+3y+3z=15\left\{ \begin{array} { r } 2 x + 4 y - 5 z = - 8 \\x + 5 y + 2 z = - 1 \\3 x + 3 y + 3 z = 15\end{array} \right.⎩⎨⎧​2x+4y−5z=−8x+5y+2z=−13x+3y+3z=15​

Solve the System Using the Inverse Method $\left\{ \begin{array} { r } 2 x + 4 y - 5 z = - 8 \\x + 5 y + 2 z = - 1 \\3 x + 3 y + 3 z = 15\end{array} \right.$