Respuesta :

14x2y+4x-7xy=2x-1+2

14x2y+4x-7xy=2x+1

28xy + 4x -7xy =2x+1

21xy = 2x+1 -4x

21xy = -2x+1

21xy +2x -1 =0 

y = -2x+1 / 21 x 

I think like that 
I don't see any question !!!