Open Middle®
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to create a true equation.
Hint
Try writing the rational expression as the sum of fractions.
Answer
There are 54 known solutions for this problem if you express the problem as (Ax^2 + Bx)/Cx = Dx + E.
With the format (A, B, C, D, E), two of the solutions are: (6, 8, 2, 3, 4) and (8, 6, 2, 4, 3)
Source: Eduardo Bernal
To be clear are you saying there are 54 solutions using the same 5 numbers posted under answer?