exam Maths Puzzle Numerical Ability

Please help me with this one:

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

Thank you,

Marco

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exam Other Question

Solve the equation by completing the square

x^2 + 16x + 43 = 0 eight stock clerks can stock 26,000 cans in 10 hours. How long will it take 5 clerks to stock 16,500 cans?