Question 93852
Since the expression has a common term {{{2x+y}}} we can combine the two terms. If that doesn't make sense, we can let {{{w=2x+y}}} to get 


{{{ 4w - 2 w}}}


Now we can see that we have a common term of w. So combine like terms


{{{ 4w - 2 w=2w}}}


Now replace w with {{{2x+y}}}


{{{2(2w+y)}}}