add algebraize answer bottom calculate cast cipher clear up compute crack debug decipher decode disentangle divide divine do dope dope out estimate explain extract roots fathom figure figure in find out find the answer find the solution get get right guess guess right have it hit it interpret make out measure multiply open the lock plumb psych psych out puzzle out ravel ravel out reckon resolve riddle score solve sort out subtract take account of tally undo unfold unlock unravel unriddle unscramble untangle untwist unweave work work out