200. Решите уравнение:

1) -9x = 36 => x = -4
2) 0,6x = -2,4 => x = -4
3) -1,8x = -5,4 => x = 3
4) 1/7x = -5/14 => x = -5/14 * 7 = -5/2
5) -5/6x = -1/7 => x = -1/7 * (-6/5) = 6/35
6) -2 5/6x = 17/18 => -17/6x = 17/18 => x = 17/18 * (-6/17) = -1/3