Solve for x and y. $\left[ \begin{array} { c c }
2 x + 5 & x - y \
y + 8 & x - 4
\end{array} \right] = \left[ \begin{array} { c c }
11 & 4 \
7 & - 1
\end{array} \right]$
A)3, -1
B) -11, -18
C) 3, 11
D) 18, -11
E) 18, -2

Question

Solve for x and y.   $\left[ \begin{array} { c c } 
2 x + 5 & x - y \
y + 8 & x - 4
\end{array} \right] = \left[ \begin{array} { c c } 
11 & 4 \
7 & - 1
\end{array} \right]$  
A)3, -1
B) -11, -18
C) 3, 11
D) 18, -11
E) 18, -2

Quizplus · Accepted Answer

To solve for $x$ and $y$, equate the corresponding elements of the matrices:1. $2x + 5 = 11$2. $x - y = 4$3. $y + 8 = 7$4. $x - 4 = -1$From equation 1: $2x = 6 \Rightarrow x = 3$From equation 3: $y = -1$Thus, $x = 3$ and $y = -1$, which corresponds to choice A.

Solve for X and Y A)3, -1 B) -11, -18 C) 3, 11 D) 18

Solve for X and Y A)3, -1
B) -11, -18
C) 3, 11
D) 18