A bag contains $$\(X\)$$ counters. There are only red counters and blue counters in the bag. There are 4 more blue counters than red counters in the bag. Finty takes at random 2 counters from the bag. The probability that Finty takes 2 blue counters from the bag is $$\(\frac{3}{8}\)$$ Work out the value of $$\(X\)$$. Show clear algebraic working.

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