Question

Which expression is equivalent to -3(2m-1)-n?

Answer 1

$- 3 \times (2m - 1) = - 6m + 3 \\ - 6m + 3 - n = - 6m - n + 3$

Answer 2

 -3(2m-1)-n= - 6m+3-n= - 6m - n +3 
Correct answer is D.