Question

equation x=7 in two variables can be written as _______________ .

Answer 1

$$\begin{gathered} \mathrm{The}\mathrm{equation}x=7\mathrm{in}\mathrm{two}\mathrm{variables}\mathrm{can}\mathrm{be}\mathrm{written}\mathrm{as}, \\ \boxed{1.x+0.y=7} \end{gathered}$$