Question 1113537
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<pre>
{{{2/n}}} + {{{2/(n+3)}}} = 1


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2*(n+3) + 2n = n*(n+3)


2n + 6 + 2n = n^2 + 3n


n^2 - n - 6 = 0


(n-3)*(n+2) = 0.


The roots are n= 3  and  n= -2.


Since you are looking for positive n, only the root n= 3 is the solution.


<U>Answer</U>.  Positive integer n = 3.
</pre>

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In future, &nbsp;when there are formulas in your post, &nbsp;use parentheses to separate different parts and make clear which part of the formula 
is the numerator and which part is the denominator. &nbsp;Otherwise your formulas are ambiguous and/or unreadable.


In this case, the correct writing is  


(2/n) + 2/(n+3) = 1.