Si: X - Y = 4
- [5Y - (4Y + X)]
- [5Y - 4Y - X]
- 5Y + 4y + X
- Y + X = 4 ---------> Es lo mismo que nos dan mas arriba ( X - Y = 4 )
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Si: X - Y = 4
- [5Y - (4Y + X)]
- [5Y - 4Y - X]
- 5Y + 4y + X
- Y + X = 4 ---------> Es lo mismo que nos dan mas arriba ( X - Y = 4 )