exam Maths Puzzle Numerical Ability

How do you add this rational expression: 6x+4/x+1 - x-1/x+1?

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exam Other Question

Brett usually takes 50 minutes to groom the horses. After working 10 minutes, he was joined by Angela and they finished the grooming in 15 minutes. How long would it have taken Angela working alone? Please explain the steps and the equation used. Thanks. solve
x - 19 = 3x - 19