Wow... you got the right answer which is -0.375...
But mine is in fraction form:
5 ( 1 - 2x ) = 2 ( 4 - x ) simplify by multiplying
5 - 10x = 8 - 2x by grouping
-10x + 2x = 8 - 5 perform the indicated operations
-8x = 3 divide both sides by -8
x = - 3 / 8 or in decimal is -0.375