Related Post: X Y 1 2x 3y 2 X Y Z 1 2x 3y 2z X 2 Y 1 2x 3y K X Y Z 1 2x 3y 2z 2 Is X Y 1 2x 3y 2 Xy 0 X Y Z 1 2x 3y 2z 2 X Y 2z 4 2x Y 1 X 2x 3y 5 X 3 Y 1 3 2x 2 3y 5 By Elimination Method X Y Z 1 2x Y 1 3x 3y 4z 2 5 X 3 Y 1 3 2x 2 3y 5 By Substitution Method