Пошаговое объяснение:
5(3х + 2) + (7х - 10) =
15х + 10 + 7х - 10 =
(15х + 7х) + (10 - 10) =
22х + 0 = 22х
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Пошаговое объяснение:
5(3х + 2) + (7х - 10) =
15х + 10 + 7х - 10 =
(15х + 7х) + (10 - 10) =
22х + 0 = 22х