exam Maths Puzzle Numerical Ability

Help! Please simplify this for me, I suck at algebra.Thanks
5x+2y
______
35x+14y

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exam Other Question

hi i really dont understand what to do for this equation please help me out. thanks i apreciate it.

(16x) over (25x^2-5) times ( 2x^2-x-1) over(8x) W x (L=9) = 36 2

length is 9 inches greater than the width area 36in2.
Can you please break down how this is done (the formula).
Thank you