" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
U5 = a + 4b = 19 -
-3b = -12
b = -12/-3 = 4 <----- selisih
a + b = 7
a = 7 - 4
a = 3