exam Maths Puzzle Numerical Ability

How do you subtract this rational expression: 7/x-5 - 2+x/x-5? whats the answer?

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exam Other Question

Please help me Convert to exponential form. For example, the exponential form of "log5 25 = 2" is "52 = 25".

a) log 3 27 = 3

b) log e 1 = 0

c) log 125 25 = 2/3

Please help me figur this out. How can I change an algebraic expression to the common languaje?