Question

find the value of a so that the point (a,2) lies on the line represented by x-2y=3

Answer 1

$$\begin{gathered} \mathrm{As}\left(\mathrm{a},2\right)\mathrm{lies}\mathrm{on}\mathrm{line}\mathrm{x}-2\mathrm{y}=3. \\ \mathrm{So}, \\ \mathrm{a}-2\left(2\right)=3 \\ \mathrm{a}-4=3 \\ \mathrm{a}=7. \\ \mathrm{Value}\mathrm{of}\mathrm{a}\mathrm{is}7. \end{gathered}$$