Предмет: Алгебра, автор: annry567

найдете сумму всех натуральных чисел ,кратных 7 и не превосходящих 150.

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Автор ответа: manyny06

решение смотри на фотографии

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Автор ответа: irinan2014

Всё подробно написала в решении.......

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