номер 895 решите уравнение

1)4 - 7x +5 - 5x = 60 - 6x - 39 - 12x = 57 - 6x-12x + 6x = 57 - 9-6x = 48x = -48 : 6x = -82)10 - y + 6y + 16 = 3y + 1826 + 5y = 3y + 185y - 3y = 18 - 262y = -8y = -8 : 2y = -43)12x + 20 + 45x - 25 = 120 + 30x + 1057x - 5 = 130 + 30x57x - 30x = 130 + 527x = 135x= 135 : 27x = 54)5 - 9x - 6 - 10x = 20 - 12x-1 - 19x = 20 - 12x-19x + 12x = 20 + 1-7x = 21x = -21 : 7x = -3