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[(12×y+5):5+17]:6+19<(999:8+13):4-5​

Răspuns :

[(12*y+5):5+17]:6+19<(999:8+13):4-5

[(12*y+5):5+17]:6+19<137,87:4-5

[(12*y+5):5+17]:6+19<29,46

[(12*y+5):5+17]:6<10,46

(12*y+5):5+17<62,76

(12*y+5):5<45,76

12*y+5<228,8

12*y<223,8

y<18,65