Question 31970

  7x
-------  = 0
12x+x^2


on cross multipication we get,,,

7x = 12x + x^2

put together like variables and we get...

 0  = 12x - 7x + x^2

0 = 5x + x^2

taking x as common , we get.....

 0 = x (5+x)

now either x = 0 or (5+x) = 0 

therefore the values of x are 0 and -5

hope this will help you 

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