Hi All,

Since this question asks for the value of X that fits a specific set of conditions, and the answer choices are NUMBERS, we can TEST THE ANSWERS. This is essentially a "brute force" solution - we just have to plug in answers until we find the one that fits the given 'restrictions.'

We're told that the f(X) = 3X - 5

We're asked for the value of X that would make 2[f(X)] - 1 = f(3X - 6)

Let's start with Answer A...

IF....

X = 0

f(0) = 0-5 = -5

2[f(0)] - 1 = 2(-5) - 1 = -11

f(-6) = -18 - 5 = -23

-11 is NOT equal to -23 so this is NOT the answer.

Let's try Answer B....

IF....

X = 4

f(4) = 12-5 = 7

2[f(4)] - 1 = 14 - 1 = 13

f(6) = 18 - 5 = 13

13 IS equal to 13, so this MUST be the answer.

Final Answer:

GMAT assassins aren't born, they're made,

Rich

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