Предмет: Математика, автор: молдир611

14 (2х-3)-5 (х+4)=2 (3х+5)+5х

Ответы

Автор ответа: paskot

1

28х-42-5х-20=6х+10+5х
12х=72
х=6

Автор ответа: Aiko152

1

28х-42-5х-20=6х+10+5х
28х-5х-5х-6х=42+20+10
12х=72
х=72/12
х=6

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