exam Maths Puzzle Numerical Ability

[can i please get help to simplify?

x+2
over
x
over
x-2
over
3x

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The problem is:

Express the exponential function as log functions:
10^x= 1000

My answer is 3.

10^2x+1 =3

My answer is x=.2385

e^3y=1

My answer is x=.7675

Please and thank you in advance.
Find two consecutive odd integers such that three times the second is twelve more than the first.