exam Maths Puzzle Numerical Ability

the sum of the digits in a two digit number is 17. if the digits are reversed, the new number will be 9 less than the original number. what is the original number?

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Please help me with this:
It asks to have the inequality solved and to state and graph the solution set???
x/x-3<=-8/x-6 HELP PLEASE!!! Divide the following fractions.

16x/4x^2-16 divided by 4x-24/x^2- 4x -12