Question

Simplify.

a - {4b - [a - (5b - c) + 3c - (a - b - 9c)]}

Answer 1

please help

Answer 2

options: -a - 8b + 13c

a - 8b + 13c

a - 2b + 13c

-a - 2b + 13c

Answer 3

a - {4b - [a - (5b - c) + 3c - (a - b - 9c)]}
=a - {4b - [a - 5b + c + 3c - a + b + 9c]}
=a-{4b-[-4b+13c]}
=a-{4b+4b-13c}
=a-8b+13c
answer is option A

Answer 4

u mean b?

Answer 5

sorrey.answer is option B...not A...