" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b. 26a +19b- 5c +3d
3. 12x -8y -10z + 10
( caranya,bilangan2 yang memiliki variabel yang sama bisa di jumlah maupun dikurangi)