Question

Which of the following expressions is equivalent to 6m - 10?

2(3m + 5)
-2(5 - 3m)
2(3m - 10)

Answer 1

Just calculate this:
A) 2(3m + 5) = 6m + 10 - incorrect
B) -2(5 - 3m) = -10 + 6m - could be correct
C) 2(3m - 10) = 63 - 20 - incorrect

So the correct answer has to be B: -10 + 6m is the same as 6m - 10.