" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x - 6 - II liczba
x + (x-6)/2 = 10 /*2
x + (x-6) = 20
x + x = 20 + 6
2x = 26 / :2
x = 13
pozdrawiam :)
x+x-6=20
2x-6=20
2x=20+6
2x=26 |/2
x=13