[tex]y = 2x + 1 \\ \\ 1. \: y - 1 = 2x \\ \\ 2. \: \frac{y - 1}{2} = x \\ \\ 3. \: x = \frac{y - 1}{2} \\ \\ \\ y = 2x + 2 \\ \\ 1. \: y - 2 = 2x \\ \\ 2. \: \frac{y - 2}{2} = x \\ \\ 3. \: - 1 + \frac{y}{2} = x \\ \\ 4. \: \frac{y}{2} - 1 = x \\ \\ 5. \: x = \frac{y}{2} - 1[/tex]
