[tex]a) \: 6x - 2 = 8x + 7 \\ 6x - 8x = 7 + 2 \\ - 2x = 9 \: \: | \div ( - 2) \\ x = - 4.5[/tex]
[tex]b) \: 3(x - 4) = 16 + 2x \\ 3x - 12 = 16 + 2x \\ 3x - 2x = 16 + 12 \\ x = 28[/tex]
[tex]c) \: \frac{x - 6}{5} = \frac{x - 5}{6} \: \: | \times 30 \\ 30 \times \frac{x - 6}{5} = 30 \times \frac{x - 5}{6} \\ 6(x - 6) = 5(x - 5) \\ 6x - 36 = 5x - 2 \\ 6x - 5x = - 2 + 36 \\ x = 34[/tex]
