Предмет: Математика, автор: yuriigulyaev83

(2x+5)6=78
(3x-10)4=20

Ответы

Автор ответа: Yulia0852

0

12х+30=78 12х=48 х=4 12х-40=20 12х=60 х=5

Автор ответа: белка05

0

12х+30=78
12х=48
х=4

12х-40=20
12х=60
Х=5

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