Question

If A = -2a + 7 - 8a + 3b, B = -3a -32b +7a - 2b, C = -4a + 9b - 7a + 3b,then A+B+C​

Answer 1

Answer:

5a + 7 - 19b

Step-by-step explanation:

A = - 2a + 7 - 8a + 3b

B = - 3a - 32b +7a - 2b

C = - 4a + 9b - 7a + 3b

A + B + C

( - 2a + 7 - 8a + 3b ) + ( - 3a - 32b + 7a - 2b ) + ( - 4a + 9b - 7a + 3b )

( - 2a - 8a + 7 + 3b ) + ( - 3a + 7a - 32b - 2b ) + ( - 4a - 7a + 9b + 3b )

( - 10a + 7 + 3b ) + ( 4a - 32b - 2b ) + ( 11a + 9b + 3b )

( - 10a + 7 + 3b ) + ( 4a - 34b ) + ( 11a + 12b )

- 10a + 7 + 3b + 4a - 34b + 11a + 12b

- 10a + 4a + 11a + 7 + 3b - 34b + 12b

- 6a + 11a + 7 + 3b - 34b + 12b

5a + 7 + 3b - 34b + 12b

5a + 7 - 31b + 12b

5a + 7 - 19b