If -2/(a - 6) = 4/(a + 4), then a = ?  Choices:
A) 2/3 B) 1/2 C) 5/3 D) 8/3 E) 7/3
Multiply all terms of the given equation by (a - 6)(a + 4), simplify and solve   (a - 6)(a + 4)[ -2/(a - 6) ] = (a - 6)(a + 4) [ 4/(a + 4) ]   - 2 (a + 4) = 4 (a - 6)   a = 8/3   correct answer 8/3
<result>D</result>
If -2/(a - 6) = 4/(a + 4), then a = ?