= (2a + 3a) + (4b - 5b) = 5a + (-1b) = 5a - b.
Ответ: 5a - b.
Решение и ответ:
2a + 3a + 4b - 5b = 5a - b
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= (2a + 3a) + (4b - 5b) = 5a + (-1b) = 5a - b.
Ответ: 5a - b.
Verified answer
Решение и ответ:
2a + 3a + 4b - 5b = 5a - b