" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x - 1 + 2x + 3x + 1 = 6
6x = 6
x = 1
untuk x < 0
-x + 1 - 2x - 3x -1 = 6
-6x = 6
x = -1
hp = { -1 , 1 }