Question:
If (2, 0) is a solution of the linear equation 2x + 3y = k then the value of k is
(a) 6
(b) 5
(c) 2
(d) 4
Solution:
Since, (2, 0) is a solution of the linear equation 2x + 3y = k.
Substituting the values x = 2 and y = 0 in the equation 2x + 3y = k, we get
$2(2)+3(0)=k$
$\Rightarrow 4=k$
or, $k=4$
Hence, the correct option is (d).