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[tex]5x + 5y = 120 \ \ 4x + 6y = 350[ / tex]?

[tex]5x + 5y = 120 \ \ 4x + 6y = 350[ / tex].

En resumen

5x + 5y = 120 (4) 4x + 6y = 350 ( - 5) 20x + 20y = 480 - 20x - 30y = - 1750 / / - 10y = - 1270y = 1270 / 10y = 1274x + 6(127) = 3504x + 762 = 3504x = 350 - 7624x = - 412x = - 103.

Mejor respuesta

Rodrigo2262cace
5

5x + 5y = 120 (4)

4x + 6y = 350 ( - 5)

20x + 20y = 480 - 20x - 30y = - 1750 / / - 10y = - 1270y = 1270 / 10y = 1274x + 6(127) = 3504x + 762 = 3504x = 350 - 7624x = - 412x = - 103.