Question

if (3,1) is the solution of the equation 3x+2y=k ,find the value of k

Answer 1

(3,1) is the solution of the equation 3x+2y=k

i.e. x=3 and y=1 are true for equation

-->3(3)+2(1)=k
k=9+2
k=11

Answer 2

3x+ 2y = k
or , 3×3+ 2×1 = k
or, k= 11 [x=3,y=1]
i hope you will understand...