Question

Помогите пожалуйста решить даю 35 баллов

Answer 1

$\left \{ {{x-2y=-17} \atop {7x-9y=7}} \right. \\\\\left \{ {{x=2y-17} \atop {7*(2y-17)-9y=7}} \right.\\\\\left \{ {{x=2y-17} \atop {14y-119-9y=7}} \right.\\\\\left \{ {{x=2y-17} \atop {5y=126}} \right. \\\\\left \{ {{x=2y-17} \atop {y=25,2}} \right.\\\\\left \{ {{x=2*25,2-17} \atop {y=25,2}} \right.\\\\\left \{ {{x=50,4-17} \atop {y=25,2}} \right.\\\\\left \{ {{x=33,4} \atop {y=25,2}} \right. \\\\Otvet:\boxed{(33,4;25,2)}$

Answer 2

Ответ:

$(77.47.y58)$

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