Jawabanmu

2014-03-10T05:57:41+07:00
A+b = 30
3a = 30+2b -> 3a-2b=30
Dieliminasi, jadinya : a= 18 ; b = 12
a.b = 18.12=216


1 5 1
2014-03-10T08:28:09+07:00
a+b = 30
3a = 30+2b -> 3a-2b=30
Dieliminasi : a= 18 ; b = 12
a.b = 18.12=216