VictoriaO18 VictoriaO18

21-04-2020
Mathematics

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10x+2y=300
8x+4y=360

Respuesta :

Anisatunizzati Anisatunizzati

21-04-2020

Answer:

x = 20

y = 50

Step-by-step explanation:

10x + 2y = 300 | ×2 |

8x + 4y = 360 | ×1 |

20x + 4y = 600

8x + 4y = 360

_____________--

12x = 240

x = 240/12

x = 20

10x + 2y = 300

10(20) + 2y = 300

200 + 2y = 300

2y = 300 - 200

2y = 100

y = 100/2

y = 50

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