" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Para este caso: - 25 < 7 x - 4 < 25; trasponemos 4
- 25 + 4 < 7 x < 25 + 4; dividimos por 7
Finalmente - 3 < x < 29/7
Saludos Herminio