exam Maths Puzzle Numerical Ability

Solve.

3 - a-1/a+2 = a^2-1/a+2

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exam Other Question

two private airplanes travel toward each other from cities that are 780 miles apart at speds 190 mph and 200mph. they left at the same time in how many hours will they meet? solution__________ Please help with my last two problems out of the 25 I had to do Thank you so much.

x^3 -4=2 show all work

show steps that you would take to solve the following
4-x over x-