book Maths Puzzle Numerical Ability

I dont understand how to solve a problem that states : Find the area of a rectangle with L=2x+3 and W = x-2

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book Other Question

. Solve for x:
4x + 3 - 13x - 7 < 2(3 - 4x)

Please break down and explain. Thanks so much! Malik purchased a pair of roller blades that were originally priced at $250 for a sale price of $180. He charged the roller blades on his credit card and made the minimum monthly p