Answer:
[tex]r = - 5(3x - 7) + 11x + 4(x - 3)[/tex]
Step-by-step explanation:
[tex]1. \: - r + 2x = 5(3x - 7) - 9x - 4(x - 3) \\ 2. \: 2x - r = 5(3x - 7) - 9x - 4(x - 3) \\ 3. \: - r = 5(3x - 7) - 9x - 4(x - 3) - 2x \\ 4. \: - r = 5(3x - 7) - 11x - 4(x - 3) \\ 5. \: r = - 5(3x - 7) + 11x + 4(x - 3)[/tex]
