Question 1180604
.


Regarding this problem,  there is a dispute between two tutors,  @MathLover1  and  Edwin.


I will refer to the post


https://www.algebra.com/algebra/homework/Expressions-with-variables/Expressions-with-variables.faq.question.1180564.html


of yesterday,  where both tutors placed their solutions.



<pre>
    The current solution by @MathLover1 is the copy of her solution, 
    placed under the cited link.
</pre>


I do not see any reason to repeat the mathematics of both participants.


I attentively looked at both solutions, &nbsp;and I see that the solution and the answer by &nbsp;Edwin &nbsp;is &nbsp;RIGHT,

while the answer and the solution by &nbsp;@MathLover1 are incorrect &nbsp;(have an error).



The error in the solution by &nbsp;@MathLover1 &nbsp;is in the row number &nbsp;12.



&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;It is not amazing to make an error by writing five-storey fractions.



&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This style &nbsp;(&nbsp;writing multy-storey fractions with the number of stores more than &nbsp;4&nbsp;) &nbsp;leads to errors &nbsp;&nbsp;INEVITABLY.



////////////



Resume: &nbsp;&nbsp;use the solution and the answer by &nbsp;Edwin


and ignore the answer and the solution by &nbsp;@MathLover1.