Question

-a-b from 9a-8b ... please solve fast​

Answer 1

Answer:

$(9a - 8b) - ( - a - b)$

$9a - 8b + a + b$

$9a + a - 8b + b$

$10a - 7b$

Ans. 10a - 7b

Hope it helps.

Answer 2

$= 9a - 8b - ( - a - b)$

$= 9a - 8b + a + b$

$= 10a - 7b$