Answer:
A)1,-3
Step-by-step explanation:
X+2y=5
X-3y=7
To write a determinant we take the coefficient of the variables
To get first row we take the coefficients of x and y from the equation x+2y = 5
x or 1x are same
1x+2y = 5
The coefficient of x is 1 and coefficient of y is 2
So first row is 1 , 2
We do the same for second row
To get second row we take the coefficients of x and y from the equation x-3y = 7
1x - 3y = 7
The coefficient of x is 1 and coefficient of y is -3
So second row is 1, -3
