exam Maths Puzzle Numerical Ability

6x - 1 / 5 - 2x / 3 = 3

written as:

6x - 1 2x
------ - -- = 3
5 3

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exam Other Question

Factor and simplify: cos�x-sin�xcos�x The weight of 1m^3 of air is approximately 1.3 x 10^3 g. Suppose that the volume of air inside of a building is 3 x 10^6 m^3. How much does the air inside the building weigh?