What is the solution set for #-2m + 5 = -2m - 5#?
This equation has no real solutions.
You can cancel out the two
#color(red)(cancel(color(black)(-2m))) + 5 = color(red)(cancel(color(black)(-2m))) - 5#
This will leave you with
As it is written, this equation will always produce the same result, regardless of value