Помогите пж 1.7,2х+1,8х 2. 1/6х+1/2х 3.9,3х-1,4х 4.3/4х-1/2х 5.10х-6,7х Х-4/5х

Question

Помогите пж
1.7,2х+1,8х 2. 1/6х+1/2х 3.9,3х-1,4х 4.3/4х-1/2х 5.10х-6,7х
Х-4/5х

Answer 1

1) 9х. 2) 2/3х. 3) 7.9х. 4) 1/4х. 5) 3.3х