|x|*x + 3*|x| - 5*x
-5 + 3*sign(x) + x*sign(x) + |x|
2*(3*DiracDelta(x) + x*DiracDelta(x) + sign(x))
2*(3*DiracDelta(x) + 3*DiracDelta(x, 1) + x*DiracDelta(x, 1))