Предмет: Алгебра, автор: Аноним

решить систему
{ х-у=1; 3х+2у=18
ПОМОГИТЕ СКА СРОЧНО!!!

Ответы

Автор ответа: Аноним

0

Ответ:

Объяснение:

x-y=1 ⇒ y=x-1

3x+2y=18

3x+2(x-1)=18

3x+2x=18+2

x=20/5=4

y=4-1=3

Ответ: (4; 3).

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