Question 396145
Subtract.  Simplify, if possible.
{{{(7-x)/(x-3)-(2x-9)/(3-x)}}}
We can make the denominators the same by factoring out -1 on the second denominator
{{{(7-x)/(x-3)-(2x-9)/(-1(x-3))}}}
Which changes the sign to
{{{(7-x)/(x-3)+(2x-9)/(x-3)}}}
:
{{{((7-x)+(2x-9))/(x-3)}}} = {{{(x - 2)/(x-3)}}}