Предмет: Математика, автор: Aleksandrafox3435

(390 - 120 : x) : 6 = 60

Ответы

Автор ответа: Silеncе

(390 - 120 : x) : 6 = 60
(390 - 120 : x) = 60*6
(390 - 120 : x) =360
120:х=390-360
120:х=30
х=120:30
х=4

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