Question

x = 2, y = -1 is a solution of the linear equation 

A. x + 2y = 0 

B. x + 2y = 4 

C. 2x + y = 0 

D. 2x + y = 5

Answer 1

x = 2 and y = -1 

We will check by substituting the values in the given equations 

(a) 2 - 2 = 0 which is true 

Thus, 

x + 2y = 0 is the equation 

(b) 2 - 2 = 4 which is not true 

(c) 4 - 1 = 0 which is not true 

(d) 2 × 2 - 1 = 5 which is not true