Ответ:

[tex]2) \frac{3x - 3y}{7(x - y)} = \frac{3(x - y)}{7(x - y)} = \frac{3}{7} [/tex]

[tex]6) \frac{7x - 14y}{3x - 6y} = \frac{7(x - 2y)}{3(x - 2y)} = \frac{7}{3} = 2 \frac{1}{3} [/tex]

[tex]10) \frac{3x - 9y}{6y - 2x} = \frac{3(x - 3y)}{2(3y - x)} = \frac{ - 3(3y - x)}{2(3y - x)} = \frac{ - 3}{2} = - 1.5[/tex]