" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= a+b-c+2a+a-b
= 4a-1b-c respuesta final
a + b - c + 2a - a - b
a + 2a - a + b - b - c
3a - a - c
2a - c
Solución :
2a - c