exam Maths Puzzle Numerical Ability

X2-5x-14 4
_________ divided by ______
8 x-7

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exam Other Question

Kevin works 3 times as many hours in a week as Karen does. If each were to work 6h more per week, Kevin would be working twice as many hours as Karen does. How many hours does each work now? Solve and check each of the following equations for x. more complicated and im thinking too much. thank you for helping me.

x/x-2 - x+1/x = 8/x^2-2x