Предмет: Алгебра, автор: Аноним

x-1= 7(x - 1)
помогите!

Ответы

Автор ответа: mereibeisenova

1

Ответ:

х-1=7 (х-1)

х-1=7х-7

х-7х= -7+1

-6х=-6

х=1

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