exam Maths Puzzle Numerical Ability

one half the sum of a number and 2 is equal to one third the sum of the number and eight. What is the number?

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exam Other Question

5th root of(-64) 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.