Решите систему уравнений методом подстановки:
[tex] \left \{ {{xy=2} \atop {2x-y=3}} \right. [/tex]
Решите систему уравнений методом алгебраического сложения:
[tex] \left \{ {{4 \sqrt{x} +3 \sqrt{y} =18} \atop {5 \sqrt{x} -2 \sqrt{y} =11}} \right. [/tex]
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