exam Maths Puzzle Numerical Ability

Hello out there,I need some help with some problems,the first one is,Solve 6/x+2=2/x-4.The next one is,Solve 3/x+4-1/x=1/x.The third one is,Solve x/5=x+4/9.And the last one is,Solve 1/2x+1/x=3/8,thanks to whoever can help.

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exam Other Question
Find a quadratic function in the form of y = ax2 + bx + c that would have the given roots.

1. x = 2i and x = -2i
2. x =3 + i and x = 3 - i I need to slove by completing the square
m^2-1/2 m=7/2