Related Post: Y 1 3 X 3 2 3 X Y =(- 1 3 3 2 3 4 Y 1 3 3 2 3 Expand 1 3 X 2 3 Y 3 5 X 3 Y 1 3 2x 2 3y 5 X 2 Y 3 1 3 X 2y 3 X 1 3 Y 1 3 A 2 3 Find Dy Dx X 2 Y 3 =- 1 And Xy 3 3 By Substitution Method X 2 Y 3 =- 1 And Xy 3 3 By Elimination Method 5 X 3 Y 1 3 2x 2 3y 5 By Substitution Method