Question

Помогите решить!
3 1/3 - (4 1/5х + х): 5 4/7= 8/15

Answer 1

1-(4/5Х+Х)/5*4/7=8/15
1-(9Х/5)/5*4/7=8/15
1-9Х/25*4/7=8/15
1-36Х/175=8/15
7/15=36Х/175
1225=540Х
Х=1225/540=2 145/540=2 29/108