" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
buku jadikan y ->>> pakai cara eliminsi
2x + 3y = 4750 |.2| 4x + 6y = 9500
5x + 2y = 5000 |.3| 15x+6y = 15000 _
-11x = -5500
x= -5500 : -11 = 500
|.5| 10x + 15y = 23750
|.2| 10x + 4y = 10000 _
11y = 13750
y = 13750 : 11 = 1250
3x + 12y = 3(500) + 12(1250)
= 1500 + 15000
= 16500
jadi harga 3 pensil dan 12 buku adalah Rp. 16.500,-
semoga bisa membantu, maaf kalau salah maklumi saja