book Maths Puzzle Numerical Ability

i need help with these problems as well please.

8 divided by y+2 subtracted from 5 over y-2 is equal to 4 divided by 4 squared -4. This problem contains two fractions that are

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I need help with a word problem please.
I paid $30.00 for 2 lawn chairs of different quality. At the same prices, 3 of the cheaper chairs would have cost $3.00 less than 2 of the better ones. Find the cost of each chair.
Thank you,
M.D. a^2+6a+8=0