exam Maths Puzzle Numerical Ability

Please help me solve this equation:

The length of a rectangular room is 3 feet less than twice its width. Find the dimensions of the room if the perimeter is 54 feet.

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exam Other Question

Question The value of the nth term in a sequence is given by
the expression -5n + 2. What does the start of the sequence look like? Solve the inequality

55. -7/11d + 2 < 2/3

Any help with this equation would be Greatly</b> appreciated.