Ответ:
1) 57 - (22+17) = 57 - 39 = 18
2) (57-22) - 17 = 35 - 17 = 18
3) (57-17) - 22 = 40 - 22 = 18
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Ответ:
1) 57 - (22+17) = 57 - 39 = 18
2) (57-22) - 17 = 35 - 17 = 18
3) (57-17) - 22 = 40 - 22 = 18