Question

Решите уравнения УМОЛЯЮ

Answer 1

1) x-1,8=-2,8
x= -2,8+1,8
x= -1
2) 4x+7=11
4x=11-7
4x=4
x=4/4
x=1
3) 5x+4-3x=8
2x+4=8
2x=8-4
2x=4
x=4/2
x=2
4) 60/5=1,2/x
12=1,2/x
12x=1,2
x=1,2/12
x= 0,1

Answer 2

Х - 1 1/6 = 2 8/9 х - 21/18 = 52/18 х = 52/18 + 21/18 х = (52+21)/18 х = 73/18 х = 4 1/18