Verified answer

17х-2,6=3(0,8+3х)

17х-2,6=2,4+9х

17х-9х=-2,6-2,4

8х=-5

х=-5/8

38(0,1х+1)=40-3,2х

3,8х+38=40-3,2х

3,8х+3,2х=40-38

7х=2

х=2/7

23(х-0,1)=17х+2,7

23х-2,3=17х+2,7

23х-17х=2,7+2,3

6х=5

х=5/6