Решите уравнение:
а) 2х - (6х+1)=9 б) 4(1-5х)=9-3(6х-5)

а) 2х - (6х+1)=92х - 6х - 1 = 9-4х = 10х = - 10/4х = - 2.5б) 4(1-5х)=9-3(6х-5)4 - 20х = 9 - 18х + 1520х - 18х = 4 - 9 - 152х = -20х = -10

a)2x-6x-1=9-4x=10x=-10/4x=-2,5б)4-20x=9-18x+15-20x+18x=9+15-4-2x=20x=-10