( 65 x 4 ) : 5 = P x 13 ;n = sama caranya ya mohon dijawab sekarang

(65x4) : 5 = P x 3
=  260 : 5 = P x 3
=  52        = P x 3
= P          =  52 : 3
       = 17, 3
kalo salah maaf ..  

(65 x 4) : 5 x 13 = P
P = (65 x 4) : 65
P = 4