Question

If x = 2 and y = 1 is the solution of the equation 5x+10y=k find k.

Answer 1

Given that, x= 2 and y=1

So statement = 5x +10y=k

Or 5(2)+10(1)=k

10+10=k.

20=k answer

Answer 2

Answer:

5x+10y = k

k =5×2+10×1

k = 10+10

K = 20 ans. .