exam Maths Puzzle Numerical Ability

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1/3x-1 - 2/6x^2+13x-5 = 3/2x+5

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exam Other Question

You have two stacks of coins. One stack is 15inches tall, the other is 9 inches tall. All the coins are the same thickness, what is the thickness of the coins?
(15/x)+(9/x)=24 ? The length of a rectangle is 3 feet less than 3 times the width. If the perimeter is 146 feet, what is the length and the width of the rectangle?