According to the properties of operations, which equations are correct? Check all that apply. (A) 3a + 3b = 3(a + b)

(B) 6(g – 2h) = 6g – 2h

(C) –3c + 6d = 3(2d – c)

(D) –(4m + 8n) = –2(2m + 4n)

(E) 6u + 9v – 24w = 3(2u + 3v – 8w)