ДОПОМООООООЖІІІІІІІІІТЬ!!!!! Розв’язком якої системи є пара чисел (1; - 2):

варіанти відповідей
(2х-3у=5
(
(х+у=6.

(х+3у=-5.
(
(2х-у=4

(х+3у=5
(
(х-2у=-5

(0х+2у=6
(
(2х-0у=4​
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