Предмет: Алгебра, автор: Galaxysjhsjs

Помогите пожалуйста не могу решить

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Автор ответа: tamarandr2006

0

Ответ:

3x+3y-3=0 | *2

2x+6=0 | *(-3)

Объяснение: (6) и (-6) — противоположные

коэффициент— число, которое стоит ( в нашем случае) перед х

2х*(-3)=-6х

3х*2=6х

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