Question 660364
Given the standard order of execution of math functions, there is no solution to this problem.  

Written as a / b * c - d / e = 1, this expression is evaluated as {{{(a/b)*c - (d/e) = 1}}}
There is no way to map (1,3,5,7,9) to (a,b,c,d,e) to make this equation true.