[tex]9x + 8 = 7x + 6 \\ 9x - 7x = 6 - 8 \\ 2x = - 2 \\ x = - 1[/tex]
[tex]5x - 11 = 15x - 19 \\ - 11 + 19 = 15x - 5x \\ 8 = 10x \\ \frac{8}{ 10} = x \\ \frac{4}{5} = x[/tex]
[tex]9 + 9x = 17 + 5x \\ 9x - 5x = 17 - 9 \\ 4x = 8 \\ x = 2[/tex]
[tex]3x - 7 = 2(x + 1) \\ 3x - 7 = 2x + 2 \\ 3x - 2x = 2 + 7 \\ x = 9[/tex]
[tex]2(x - 5) = 3x - 17 \\ 2x - 10 = 3x - 17 \\ - 10 + 17 = 3x - 2x \\ 7 = x[/tex]
