Subtract :
(i) 7 from 2`
`(ii) `-8` from 5`
` (iii) 4 from `-9`
`(iv) `-7 from -5

Subtract : (i) 3 from -4 (ii) -3 from -4

Subtract: (i) 5x from 2x (ii) -xy from 6xy (iii) 3a from 5b (iv) -7 x from 9y (v) 10x^(2) from -7x^(2) (vi) a^(2) - b^(2) from b^(2) - a^(2)

Subtract: -8xy from 7xy

Subtract: -4x from 3y\ (ii) -2x\ from -5y

Subtract 1(5)/(6) from 8.

Subtract: (i) -5y^(2) from y^(2) (ii) 6xy from (iii) (a-b) from (a+b)

Subtract: 5x from 9x (ii) -7x from 5x -8a from -3a

Subtract: 4/(15)\ from\ \ 2 1/5

Subtract i -8 from 5 ii 7 from (-6) iii -9 from -5

Subtract: 7a^2b\ from 3a^2b (ii) 4x y\ from -3x y