linear problem

14 LETTERS · STARTS WITH L

linear problem is a valid 14-letter word worth 19 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1I1N1E1A1R1P3R1O1B3L1E1M3

1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 1 + 1 + 3 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does linear problem mean?