Решите уравнение 1) (2 9/59-a)-16/59=1 5/59 2) 3 4/9-(x-1 7/9)=2 2/9 3) 10 6/10-(7 3/10-y)=4 9/10 4)17 18/35-(n+4 23/35)=9 12/35

29/59-а=15/59+16/59
29/59-а=31/59
-а=31/59-29/59
-а=2/59
а=-2/59
проверка:
29/59+2/59=15/59+16/59
31/59=31/59