Respuesta :

Answer:

56x- 35y -60xy = 0

Step-by-step explanation:

1/2x+4/5y=6/7

5y + 8x/ 10xy = 6/7

7(5y + 8x)= 6 x 10xy

35y + 56x= 60xy

56x- 35y -60xy = 0