Respuesta :
x - y = -1 multiply by 5
we get 5x -5y = -5
subtract the equations:
5x - 5y = -5
-
2x - 5y = -5
5x - 5y -(2x - 5y ) = - 5 - - 5
5x - 5y - 2x + 5y =0
3x = 0
x = 0
2(0) - 5y = -5
- 5y = -5
y = 1
x - y = -1 multiply by 5
we get 5x -5y = -5
subtract the equations:
5x - 5y = -5
-
2x - 5y = -5
5x - 5y -(2x - 5y ) = - 5 - - 5
5x - 5y - 2x + 5y =0
3x = 0
x = 0
2(0) - 5y = -5
- 5y = -5
y = 1