Jawabanmu

Jawaban paling cerdas!
2014-07-13T20:45:06+07:00
X= becak
y= sepeda

3x + 2y = 130
3x + 2×20 = 130
3x + 40 =130
3x = 90
x = 30
Jadi jumlah becak adalah 30
2014-07-13T20:47:15+07:00
Roda speda = 20×2=40
roda becak =130-40=90
jumlah becak =90:3=30

jadi jumlah becak = 30