Given f(x) = 3x – 5, for what value of x does 2*[f(x)] – 19 = f(x – 4) ?  Choices:
A) 2
B) 4
C) 6
D) 8
E) 10

Rationale: 2 ( 3 x - 5 ) - 19 = 3 ( x - 4 ) - 5 3 x = 12 x = 4 the answer is b .
Answer: B