Jawabanmu

2014-08-17T14:51:49+07:00
7x-x /(x-4)(x+3) = A(x+3) + B(x-4) / (x-4) (x+3)
6x = x (A+B) + (3A - 4B)

A+B=6
3A - 4B = 0

kemudian eliminasilah