Simplify the expression:

-3(4a-5b) show your work

Starting with the expression -3(4a - 5b), we can distribute the -3 to each term inside the parentheses:

-3 * 4a = -12a
-3 * -5b = 15b

Therefore, the simplified expression is -12a + 15b.

To simplify the expression -3(4a-5b), you can distribute the -3 across the terms inside the parentheses.

-3 * 4a = -12a

-3 * -5b = +15b

So the simplified expression is -12a + 15b.