Question

X + 2y = 5

Answer 1

C.) 5 is the value of X and the value of Y is 5/2

Answer 2

Answer:  The correct option is (a). - 5.

Step-by-step explanation:  We are given to find the value of the system determinant for the following system of linear equations :

$x+2y=5,\\\\x-3y=7.$

The system determinant for the above system is written as

$\begin{vmatrix}1 & 2\\ 1 & -3\end{vmatrix}$

And, its value will be

$\begin{vmatrix}1 & 2\\ 1 & -3\end{vmatrix}=1\times (-3)-2\times 1=-3-2=-5.$

Thus, the required value is - 5.

Option (a) is CORRECT.