Simplify 5a − 8c + b + 3c −9a + 6b .

Answer 1

Combine like terms:
5a - 9a = -4a
-8c + 3c = -5c
b + 6b = 7b

Therefore:
5a − 8c + b + 3c − 9a + 6b

simplifies to:

-4a - 2c + 7b