(17/13*x-13/2)*(3,125-33/32)=67/16
(17/13*x-6,5)*(3,125-1,03125)=4,1875
(17/13*x-6,5)*2,09375=4,1875
17/13*x-6,5=4,1875:2,09375
17/13*x-6,5=2
5,6х=6,5+2=8,5
х=8,5:5,6
х=1,517...