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Автор - gdjsbdhud

помогите пж матем срочно​

Ответ

Автор - harigopal

Ответ:

1) (90;-60)

2)y-2x=???

3)(-2;-9)

Ответ

Автор - ippolitovm

Ответ:

2)y-2х=6

2у=12+4х

у-2х=6 *-2

2у+4х=12

-2у+4х=-12

2у+4х=12

8х=0

х=0

3)у=3х-3 *-2

у=6х+3

-2у=-6х+9

у=6х+3

-у=12

у=-12

Объяснение:

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