Ответ:Решение:\( 27 - 19 = 8 \)\( 8 + 27 = 35 \)\( 8 \times 4 = 32 \)\( 18 : 3 = 6 \)\( 35 : 5 = 7 \)\( 32 + 6 = 38 \)\( 38 + 7 = 45 \)\( 45 - 17 = 28 \)Ответ: 28.