Looks who's back with more word fun!

Complete the equation ~

X + not all
X + scarf
porch + X
cultivate + X
X + composing
X + smack
links warning + X
sponsor + X
X + jump
X + virgin
beneath + X
fleeting + X
X + speedy
X + away
dais + X
silver + X
X + rev
X + not at work

Helpful Info If You Need It:
Spoiler:
1) X is the same value in all equations.
2) If the equations included "X + cutting implement" and "leaping + X", you might conclude the answers were "Jack Knife" and "Jumping Jack", where X = Jack
3) X does not = Jack in the puzzle above.