" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
3d + 4c = Rp 50000
eliminasi d
12d + 16c = 200000
12d + 6c = 90000
10c = 110000
c = 11000
substitusi
4d + 2c = 30000
4d + 2. 11000 = 30000
4d + 22000 = 30000
4d = 8000
d = 2000
ocha membeli 1 donat dan 1 coklat
d + c = 2000 + 11000 = Rp 13000
ocha membayar Rp 50000, kembaliannya adalah 50000 - 13000 = Rp 37000