Question 1090087
That is not a "this equation"; but is a "those equations".

{{{12/(15+2.143) =7/0}}}
and
{{{9/(15-2.143) =7.0}}}


The first one is wrong and impossible.  The left side is a real number and the right side is impossible, because denominator of a rational number is never zero.


See how the second equation goes:
{{{9/12.857=7.0}}}

{{{0.700=7.0}}}, FALSE... if your accuracy is to go no further than the nearest  0.001,; but anyhow, FALSE.