" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
umur anak = b
a - 2 = 6( b - 2)
a - 2 = 6b - 12
a = 6b - 10 ... (1)
a + 18 = 2(b + 18)
a + 18 = 2b + 36
a = 2b + 18
subtitusikan pers. 1
6b - 10 = 2b + 18
4b = 28
b = 7 ...(2)
a - 2 = 6(b - 2)
a - 2 = 6(7 - 2)
a - 2 = 30
a = 32
jadi umur anak 7 tahun dan umue ayah 32 tahun