Given that
[] =
[] We need to find the value of x + y.
[] =
[] Two matrices A and B are equal to each other, if they have the same dimensions and the same elements
aij =
bij , for i = 1 , 2 , ... , n and j = 1 , 2 , ... , m
x - y = - 1 ... (1)
2x - y = 0 ... (2)
Equation (2) - (1) is x = 1
Substituting the value of x = 1 in equation (1), we have
1 - y = - 1
⇒ y = 2
Therefore, x + y = 1 + 2 = 3