exam Maths Puzzle Numerical Ability

5/(2x-4) - 3/(2-x) is the problem
this is what I have done
5/2(x-2) - 3/(2-x)
I know the quotient of a-b and b-a is -1 which is what x-2 and 2-x are
BUT WHAT NOW ???? how does this information help me?

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SOLVE THE SYSTEM OF EQUATIONS USING MATRICES AND IDENTIFYTHE SOLUTION

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