Question

Find the value of K if x=2,y=1 is a solution of the equation (a) 3x+2y=k (b) 2x-ky=6​

Answer 1

Answer:

Correct option is

B

7

Given equation:

2x+3y=k

Now putting x=2 and y =1 in equation

⇒2(2)+3(1)=k

⇒4+3=k

⇒k=7