" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x + 3x + 9 = 489
4x = 489 - 9
4x = 480 /:4
x = 220
Poszukiwana liczba to 220.
x+3x+9=489
x+3x=489-9
4x=480
x=120
x + 3x + 9 = 489
4x = 489 - 9
4x = 480 /:4
x = 220
Odp. Poszukiwana liczba to 220.