book Maths Puzzle Numerical Ability

Either perform the indicated operation or solve the equation, whichever is appropriate.

-2/x = 3/x+2

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book Other Question

Can 89/13, 151/11 or 223/23 be simplified? Even though they are reduced to the lowest terms, but can they be simplified? Which ones can or none of the above. Thank you ln(1/x)+lnx=0 I have no idea if this one is right. I have to see if it is true or false. Do you know? Thank you.