exam Maths Puzzle Numerical Ability

Solve the following equation

x-(9x/x- 2) = (-10/x - 2)

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exam Other Question

Pls answer it imeediately because i need the answer as soon as possible, Thanks alot!...Q: A circular patch is to be placed over a 3" hole in a sheet of metal so that the patch extends 3/4" all around. The diameter of the patch will be??? Write without negative exponents.
(3x^-4y^2)^-3