Ответ:
5a+(3a-(4a+3)) = 5a+(3a-4а-3) = 5a+3a-4а-3 = 4а-3
Ответ: b)4a-3
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Ответ:
5a+(3a-(4a+3)) = 5a+(3a-4а-3) = 5a+3a-4а-3 = 4а-3
Ответ: b)4a-3