Odpowiedź:
[tex]1 - \frac{6}{7} x = \frac{4}{7} \\ 7 - 6x = 4 \\ 6x = 3 \\ x = \frac{1}{2} [/tex]
[tex]6( \frac{1}{4} x - 2) = 18 \\ \frac{3}{2} x - 12 = 18 \\ \frac{3}{2} x = 30 \\ 3x = 60 \\ x = 20[/tex]
[tex] \frac{x}{6} - \frac{1}{6} = 1 \\ x - 1 = 6 \\ x = 7[/tex]
[tex] - 2(2x - 1) = \frac{x}{3} \\ - 6(2x - 1) = x \\ - 12x + 6 = x \\ 13x = 6 \\ x = \frac{13}{6} [/tex]
[tex] \frac{2}{5} (3 - x) = - 2 \\ 2(3 - x) = - 10 \\ 6 - 2x = - 10 \\ 2x = 16 \\ x = 8[/tex]
[tex] \frac{3}{4} (2 - 3x) = - 6 \\ 3(2 - 3x) = - 24 \\ 6 - 9x = - 24 \\ 9x = 30 \\ x = \frac{10}{3} [/tex]
[tex] \frac{1}{5} (x - 3) = 9 - x \\ x - 3 = 45 - 5x \\ 6x = 48 \\ x = 8[/tex]
[tex] \frac{1}{2} (0.6 + x) = x + 1 \\ 0.6 + x = 2x + 2 \\ x = - 1.4[/tex]
