farruxzufatqulov

Ответ:

[tex]1. {x}^{2} + {y}^{2} = 9 \\ x - y = 3 \\ x = 3 \\ y = 0 \\ [/tex]

[tex]2.1y - x = 2 \\ xy = 8 \\ x =2 \\ y =4 [/tex]