Question 55252
Solve:

{{{x+2/3 - x -2/5 = 4}}} Combine like-terms.
{{{(x-x) + (2/3 - 2/5) = 4}}} Simplify.
{{{0 + (10/15 - 6/15) = 4}}}
{{{9/15 = 4}}}
{{{3/5 = 4}}} Not true! No solution.