Question

94) From the sum of 6b - 6c + 12 and a-b+ c-4
subtract the sum of 3a + 4 and -3b + 4 -20​

Answer 1

Answer:

$5b - 5c + 8 + a$

$3a- 3b - 12$

$(5b - 5c + 8 + a) - (3a - 3b - 12) \\ 5b - 5c + 8 + a - 3a + 3b + 12 \\8b - 5c + 20 - 2a$