" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
A + B = 3 + C
A + B - C = 3 ... pers 2
B = C - 2 ... pers 3
eleminasi pers 1 dan 2
A + B + C = 23
A + B - C = 3 _
2C = 20
C = 10
substitusi ke pers 3
B = C - 2
B = 10 - 2
B = 8
substitusi ke pers 1
A + B + C = 23
A + 8 + 10 = 23
A = 23 - 8 - 10
A = 5
Jadi, umur Adi 5 tahun, umur Budi 8 tahun, dan umur Candra 10 tahun.
semoga membantu ya :)