chimpy1 chimpy1

17-09-2017
Mathematics

contestada

1x + 4y =8
2x - 5y =29

Respuesta :

18-09-2017

Multiplying the 1st equation by -2:
-2x -8y = -16
2x - 5y = 29

13y = 13
y = 1

2x - 5 = 29
2x = 24
x = 12

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