Ответ:
1) 5 + (4а - 4) = 5 + 4а - 4 = 4а + 12)17 - (4х - 5) = 17 - 4х + 5 = 22 - 4х3)(7b - 4) - (4b + 2) = 7b - 4 - 4b - 2 = 3b - 64) - (5c - d) + (4d + 5c) = -5c + d + 4d + 5c = 5d
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Ответ:
1) 5 + (4а - 4) = 5 + 4а - 4 = 4а + 1
2)17 - (4х - 5) = 17 - 4х + 5 = 22 - 4х
3)(7b - 4) - (4b + 2) = 7b - 4 - 4b - 2 = 3b - 6
4) - (5c - d) + (4d + 5c) = -5c + d + 4d + 5c = 5d