Question

solve fast plz. ......​

Answer 1

Answer:

3a + 2b - c

Step-by-step explanation:

[(3a - b + c) + ( a + b - 3c )] - [ a - 2b - c ]

=[ 3a - b + c + a + b - 3c] - [ a - 2b - c ]

=[ 4a -0c -2c ] - [ a - 2b - c ]

= 4a - 2c - a + 2b + c

= 3a + 2b - c

Please mark as BRAINLIEST

Answer 2

=> 3a - b + c

+ a + b - 3c

____________

4a - 2c

=> 4a - 2c

- a - 2b - c

(-) (+) (+)

__________________

3a + 2b - C

Therefore ,,, Option D is correct .

Hope it's helpful ......

Please mark it as Brainliest ..... ❤