Предмет: Русский язык, автор: рллслм

Решите уравнение (7а-2а)х8=80

Ответы

Автор ответа: andreywe345adse

(7а-2а)х8=80
5ах8=80
5а=80/8
5а=10
а=10/5
а=2

Автор ответа: танюня4

(7а-2а)×8=80
5а×8=80
5а=10
а=10÷5
а=2
(7×2_2×2)×8=80
(14_4)×8=80
10×8=80
80=80

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