Question

if x= 2 and y = 1 is a solution of the equation 2x+3y = k then the value of k is a) 0 b) S c) 6 d) 7

Answer 1

When x = 1 and y = 2,

The equation becomes-

2x + 3y = k

=> 2 × 2 + 3 × 1 = k

=> 4 + 3 = k

=> 7 = k



Therefore the value of k is (d) 7.

Answer 2

Answer:

Step-by-step explanation:

2x+3y=k

x=2, y=1

Put x and y in equation

2x+3y=k

2(2)+3(1)=k

4+3=k

7=k

Hope it will help you.....