Math Chapter Wise Matrices And Determinants English MCQ PGT 2004 Q.The system of equations x + y - 2z = a, x - 2y + z = b, -2x + y + z = c is consistent, if Aa + b – c = 0 Ba – b + c = 0 Ca + b + c = 0 DNone of the above Show answer Correct answer: a + b + c = 0