book Maths Puzzle Numerical Ability

find all values of y which satisfy the equation

[(y+7)/(y+1)] +1
=[(y+7)/(y-1)]

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book Other Question

I can not seem to enter this into the solver correctly, can you help?

x^2+8x+12/x-5
_____________
3x+18/x^2-25

I tried to enter it as fraction divided by fraction FIND THE DOMAIN {3X+4}