a) 7 3/17-t =5 8/17
б) х-8 8/19 = 3 18/19
в) 9 32/35-( 5 17/35+у)= 1 19/35

а) t = 7 3/17 - 5 8/17
t = 6 20/17 - 5 8/17
t = 1 12/17;
б) х = 3 18/19 + 8 8/19
х = 11 26/19
х = 12 7/19;
в) 5 17/35 + у = 9 32/35 - 1 19/35
5 17/35 + у = 8 13/35
у = 8 13/35 - 5 17/35
у = 7 48/35 - 5 17/35
у = 2 31/35