" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
3x-2x=9-4
x=5
R.
x= 5
Comprobación
3x+4=9+2x
3(5)+4=9+2(5)
15+4=9+10
19=19