If (\begin{bmatrix}3& 2x + 5y &-2 \\\x + 4y &7 &-5\end{bmat... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

If $\begin{bmatrix}3& 2x + 5y &-2 \\\x + 4y &7 &-5\end{bmatrix}=\begin{bmatrix}3 &10&-2\\\ 2&7&-5\end{bmatrix}$ Then the values of x and y are:

A

x=-2, y = 6

B

x=12, y=5

C

x=-4, y=7

D

x=10, y = -2

Answer

x=10, y = -2

Explanation

Solution

The correct option is (D): x=10, y = -2