Simplify 5a + 8c + b + 3c + 9a + 6b

The expression 5a + 8c + b + 3c + 9a + 6b can be simplified as follows:

(5a + 9a) + (8c + 3c) + (b + 6b)

Combining like terms, we get:

14a + 11c + 7b