simplify -2+2/3(6b+15)-9b

To simplify -2 + 2/3(6b + 15) - 9b, we first distribute the 2/3 to the terms inside the parentheses:

-2 + (2/3)(6b) + (2/3)(15) - 9b

Next, we simplify each term:

-2 + 4b + 10 - 9b

Combine like terms:

(4b - 9b) + (-2 + 10)

Simplify:

-5b + 8

Therefore, -2 + 2/3(6b + 15) - 9b simplifies to -5b + 8.