exam Maths Puzzle Numerical Ability

3 over a^-9 + 3 over a+3

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4 over a^2-9 + 1 over a+3

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I am stuck on this word problem and greatly need assistance! Thank you

A garden area is 30 ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is the width of the path?
1. Solve for x. Collect xs on the LEFT side. The solution should be presented with x first, the correct inequality symbol, then the number.
x + 7 - 8x - 9 ≥ 3(x - 7)


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