Jawabanmu

2014-02-26T21:27:27+07:00
135 : 9 = 15
15 x 7 = 105
jadi, A = 105
2014-02-26T21:34:07+07:00
 \frac{A}{B}= \frac{7}{9} 

 \frac{A}{135}= \frac{7}{9}
Sebelah kiri dan kanan dikali 9
 \frac{A}{15} =  \frac{7}{1}
A = 15 X 7 
A = 105