Question

If x = 3, y = −2 satisfy 2x − 3y = k, then find the value of k.

Answer 1

Given: $x=3,y=-2$ satisfy the equation $2x-3y=k$. Then,
$2\times 3-3\times (-2)=k$

$$\begin{gathered} \Rightarrow 6+6=k \\ \Rightarrow k=12 \end{gathered}$$
Hence, $k=12$.