Решите уравнение: 1) 0,4(x - 3) - 1,6 = 5(0 1x - 0,5) 2) 1,5(2x - 5) + 2x = 5(0,5x - 1,5) - 10 3) 2/3(1 1/2x + 3/5) - 4/5(5/12x - 1/2) = 1 3/5

1) 0,4(х-3)-1,6=5(0,1х-0,5)0,4х-1,2=1,6+0,5х-2,50,4х-0,5х=1,6+1,2-2,5-0,1х=0,3х=-32) 1,5(2х-5)+2х=5(0,5х-1,5)-103х-7,5+2х=2,5х-7,5-103х+2х-2,5х=7,5-7,5-102,5х=-10х=-43) 2/3(1 1/2х+3/5)-4/5(5/12х-1/2)=1 3/52/3(3/2х+3/5)-4/5(5/12х-1/2)=8/5х+2/5-1/3х+2/5=8/5х-1/3х=8/5-2/5-2/52/3х=4/5х=4/5:2/3х=12/10х=1 1/5