exam Maths Puzzle Numerical Ability

Solve and check each of the following equations for x. This is easy and i think I am thinking to hard. Please help.
x/6 - x/8 = 1

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exam Other Question

I'm just beginning to do proofs. How do I even begin? Please explain a systematic method to set up a proof. 1. Suppose the xy axes are rotated through an angle of 60 degrees for form an xy (new roated system). Find the coordinates of P in the xy(new rotated system) if P=(6,-4)in the xy (