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Реши уравнение 56*8+х=723; 96: х=36-28

👇
Ответ:
sofia27supko
sofia27supko
29.07.2020
1 уравнение:
448+х=723
х=723-448
х=285
2уравнение:
96:х=8
х=12
4,7(59 оценок)
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Ответ:
astasevbogdanp08dn2
astasevbogdanp08dn2
29.07.2020

Пошаговое объяснение:

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4,7(20 оценок)
Ответ:
XXX231xxx
XXX231xxx
29.07.2020
Решение:
a=4k+3, k∈Z - все числа  при делении которых на 4 получаем остаток 3.

Найдём из a=4k+3, все числа при делении на 3 которых получаем остаток 2.

По отношению к делимости на 3 всё множество чисел k можно разбить на три класса: числа вида 3n, 3n+1 ,3n+2. Других целых k нет.
Если k=3n, то 4*(3n)+3=(12n+3)+0 - остаток 0 при делении на 3
Если k=3n+1, то 4*(3n+1)+3=(12n+3)+1 - остаток 1 при делении на 3.
Если k=3n+2, то 4*(3n+2)+3=(12n+9)+2 - остаток 2 при делении на 3.
Получаем 12n+11=(12n+10)+1.
(12n+10)+1 при делении на 2 всегда получаем остаток 1.
ответ: 12n+11, n∈Z
Всё задача уже решена. И не за что Вам.
4,5(38 оценок)
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