\[(a - 2)x = 35\]
\[x = \frac{35}{a - 2}\]
\[x = 5:\]
\[5 \cdot (a - 2) = 35\]
\[5a - 10 = 35\]
\[5a = 45\]
\[a = 9.\]
\[Уравнение\ имеет\ корень,\ равный\ 5,\ \]
\[при\ a = 9.\]