Темы: Решение систем линейных уравнений
Способ сложения (не графиком, а через систему)
Найдите решение системы уравнений:
а) x-6y=17, б)3х+2у=5
5х+6у=13 -5х+2у=45
[tex] \left \{ {{x-6y=17} \atop {5x+6y=13}} \right. [/tex]
[tex] \left \{ {{3x+2y=5} \atop {-5x+2y=45}} \right. \left \{ {{x-6y=17} \atop {5x+6y=13}} \right. [/tex]
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