namaanisha kwanini hata upe vigeu vya bure a na usiruhusu tu ziwe na suluhisha equtions, kwa upitishaji utapata tu x1=-x3 x2=-x3 na x3 kama utaftaji wa bure, nadhani ninakosa uhakika na kitambulisho na kubadilisha -F lakini sipati kwanini unataka kufanya hivyo badala yake ...####[['vigeu vya bure a', 'Mathematical_Related_Concept', 'NEU'], ['suluhisha equtio', 'Mathematical_Related_Concept', 'NEU'], ['x1=-x3 x2=-x3', 'Mathematical_Related_Concept', 'NEU']]