-3/8x=0,375; x×(-3 5/17)=28; 3,2x=-1 1/15

-3/8х=0,375

-0,375х=0,375

х=-1

х*(-3 5/17)=28

-56/17х=28

х=-17/2=-8,5

3,2х=-1 1/15

16/5х=-16/15

х=-1/3