2/5 (x-2) = 4x solve for x

Hmm, seems like they tried to get sneaky with the variable placement.

The first thing you need to to is distribute 2/5 through the parenthesis. This gives you the equation:

2/5x-4/5=4x

Now, get x on one side of the equation:

-4/5=3 3/5x (note the mixed number)

x=-2/9 (negative because we're dividing a positive and negative number)