Решить уравнение -8(3+х)+х=4; -6(1-х)+4х=-4; -5(-1+9х)-5=-1;-9(8-х)-4х-5=-1

1. - 24 - 8x + x = 4- 7x = 28x = - 42. - 6 + 6x + 4x = -410x = 2x = 0,23. 5 - 45x - 5 = - 1- 45x = -1x = 1/454. - 72 + 9x - 4x - 5 = - 15x = 76x = 76/5 = 15,2