Jawabanmu

2014-09-12T21:09:39+07:00
(4×5)+(p×6)+(12×7)+(9×8)+(5×9) = 7,025
20+6p+84+72+45=7,025
221+6p=7,025
6p=7,025-221
????
itu rata ratanya bener?
2014-09-12T21:34:52+07:00