" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x - wiek agaty
y - wiek mamy
y = 5x
y+5= 3*(x+5)
metoda podstawienia:
5x+5 = 3*(x+5)
5x+5 = 3x + 15
2x = 10
x = 5
y = 25
Agata ma 5 lat a mama 25 lat
y - wiek mamy
y=5x
y=3(x+5)
5x=3x+15
5x-3x=15-5
2x=10
x=5
y=5*5
x=5
y=25