Find x and y. $\left[ \begin{array} { c c c }
x - 6 & 8 & 5 y \
1 & 2 x & 9 \
9 & y + 8 & 1
\end{array} \right] = \left[ \begin{array} { c c c }
- 8 x - 42 & 8 & 15 \
1 & - 8 & 9 \
9 & 11 & 1
\end{array} \right]$
A)x = -4, y = 3
B)x = -4, y = 2
C)x = -3, y = 2
D)x = 3, y = -3
E)no solution

Question

Find x and y. $\left[ \begin{array} { c c c } 
x - 6 & 8 & 5 y \
1 & 2 x & 9 \
9 & y + 8 & 1
\end{array} \right] = \left[ \begin{array} { c c c } 
- 8 x - 42 & 8 & 15 \
1 & - 8 & 9 \
9 & 11 & 1
\end{array} \right]$
A)x = -4, y = 3
B)x = -4, y = 2
C)x = -3, y = 2
D)x = 3, y = -3
E)no solution

Quizplus · Accepted Answer

By comparing corresponding elements of the matrices, we get equations: $x - 6 = -8x - 42$, which simplifies to $9x = -36$, giving $x = -4$. Also, $y + 8 = 11$, which simplifies to $y = 3$.

Find X and Y A)x = -4, Y = 3 B)x = -4, Y

Find X and Y A)x = -4, Y = 3
B)x = -4, Y