exam Maths Puzzle Numerical Ability

Simplyfy equation

((1/x)/(2/x)-(1/(1-x)))

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exam Other Question

Find all values of y satisfying the following equation:
-6/y+1=-6-1/y-1 Thank you so much!!! The temperature in degrees Fahrenheit,F, is the sum of 9/5 the temperature in degrees Celsius, C, and the constant 32. Which equation best represents this relationship?
A. F= 9/5C + 32
B. F= 9/5(C+32)
C. F= 9/5 + C + 32
D. F= 9/5(C-32)