exam Maths Puzzle Numerical Ability

I need to check my answer:

Solve the equation:
x/2x+2= -2x/4x+4 + 2x-3/x+1

Thank you again

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exam Other Question

Find theta for 0 degrees < or = to (less than or equal to) theta < 360 degrees.
a) tan theta= 0.932,sin theta<0
b) sin theta= -0.192,tan theta<0
c) sec theta= 2.047, cot theta<0 How do I solve by using two equations in two variables?

Larry is 8 years older than his sister. In 3 years, he will be twice as old as she is now. How old are they now?