Which of the following is a simplified form of(−3m+3)−(5m−6)(−3𝑚+3)−(5𝑚−6)(−3m+3)−(5m−6)?

The expression you provided seems to be repeated three times, so I'll simplify the expression (-3m+3)-(5m-6).

Step 1: Distribute the negative sign to the terms in the second parentheses. This changes the sign of each term inside the parentheses.

(-3m + 3) - 5m + 6

Step 2: Combine like terms.

-3m - 5m + 3 + 6

Step 3: Simplify the expression.

-8m + 9

So, the simplified form of the expression (-3m+3)-(5m-6) is -8m + 9.