" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
El triple = 3x
3x + (- 7) = 20
3x - 7 = 20
3x = 20 + 7
3x = 27
x = 27/3
x = 9
Solución : El número es = 9