exam Maths Puzzle Numerical Ability

1+ 2/x+ 4/x2+ 8/x3
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1- 16/x4

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exam Other Question

Hi i really need your help with this equation.I really would appreciate it!I need help with figuring what "x" is in the equation.The equation is 1/4x-6=15.Please could you show me this step by step?Thank you!!! all about sum of the angles in a polygons?