Add the following (i)`7abc`,`-5abc`,`9abc`,`-8abc` (ii)`2x^2y`,`-4x^2y`,`6x^2y`,`-5x^2y`

Add the following: i) 7a b c ,\ -5a b c ,\ 9a b c ,\ -8a b c ii)2x^2y ,\ -4x^2y ,\ 6x^2y ,\ -5x^2y

Add the following: 7a b c ,\ -5a b c ,\ 9a b c ,\ -8a b c 2x^2y ,\ -4x^2y ,\ 6x^2y ,\ -5x^2y

Add: 4x^2y, – 3xy^2, –5xy^2, 5x^2y

Add the following 5y^2x^2, -6xy, 8x^2y^2, 3xy

Add the following: (i) x – 3y – 2z , 5x + 7y – 8z , 3x – 2y + 5z

Add the following: (i) x – 3y – 2z , 5x + 7y – 8z , 3x – 2y + 5z

List of the like terms in the following expression. (i) 4x^(4),-7x^(3),8x^(2),12x^(3),-9x^(4),-5x,4x^(3),12x^(2) (ii) 5xy,-3x^(2)y,2xy^(3),-2x^(2)y^(2),5x^(2)y,-3xy,6x^(2)y^(2)

Add the following (8)/(5)x+(11)/(7)y+(9)/(4)xy,-(3)/(2)x-(5)/(3)y-(9)/(5)xy

Add the following expressions: 5x^(2) + 7y - 6z^(2) , 4y + 3x^(2), 9x^(2) + 2z^(2) - 9y and 2y - 2x^(2)

5x-y=9; 6x-2y=10