Which sentence does not belong with the other 3?
A.) x + 12 = 12 + x
B.) 7h = h ∙ 7
C.)1 + a = a + 1
D.) n ÷ 2 = 2 ÷ n
A.) x + 12 = 12 + x
B.) 7h = h ∙ 7
C.)1 + a = a + 1
D.) n ÷ 2 = 2 ÷ n
