Answer:
Yes, 4n+ 6m - 12k and 2(2n + 3m - 6k) are indeed equivalent.
Explanation:
All we have to do in this problem is simplify the second equation since the first one is fully simplified:
2(2n+3m-6k) is a fancy way of saying 2 * everything in the parenthesis.
2 * 2n = 4n
2 * 3m = 6m
2 * -6k (Yes, we keep the negative) = -12k
4n+6m-12k does equal 4n+6m-12k