Ответ:
[tex]2x + 3y = 11 \\ x + y = 4 \\ \\ 8 - 2y + 3y = 11 \\ x = 4 - y \\ \\ y = 3 \\ x = 4 - 3 \\ \\ y = 3 \\ x = 1 \\ \\[/tex]
(1;3)
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Ответ:
[tex]2x + 3y = 11 \\ x + y = 4 \\ \\ 8 - 2y + 3y = 11 \\ x = 4 - y \\ \\ y = 3 \\ x = 4 - 3 \\ \\ y = 3 \\ x = 1 \\ \\[/tex]
(1;3)