exam Maths Puzzle Numerical Ability

Hello the section im working on is on solving rational equations. I dont understand this one im working on.
Here it is

x/x-1 + x = 4x-3/x-1

Thanks for the help

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exam Other Question

Solve the equation for x:
x^2+4x+4=7
I am not sure where to start with this one. It is strange because of the extra number. How do I do this problem? PLEASE HELP! THANK YOU!
ac Need to graph: -2x + 3y = -9. We cannot graph without this being solved for y.