Question

-3a-{2a+5b-(a-b)}-6a-(3a-4a-b)​

Answer 1

Answer:

$- 3a - (2a + 5b - (a - b)) - 6a - (3a - 4a - b)$

$- 3a - (2a + 5b - a + b) - 6a - 3a + 4a + b$

$- 3a - (a + 6b) - 6a + a + b$

$- 3a - a - 6b - 6a + a + b$

$- 4a - 6a - 6b + b$

$- 10a - 5b$

$10a + 5b$

Ans. 10a + 5b

Hope it helps.