exam Maths Puzzle Numerical Ability

One number is 3 less than twice another number. If the sum of the numbers is 330, find the two numbers. I cannot figure this out. I always come up 3 short on the answer.

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Help Solving expressions:
I did this to solve
5+(2)^2 /(3-1)*3

5+4 / 2*3
which leaves
9/6
I am confused with the PEMDAS.
If a hiker is planning on hiking from point A, expecting to finish at point B, what is the expected travel time, if the total distance between points A and B is 4,236.04, remember that the hiker only plans to hike for 16 hours per day?