If 23 × (-7) = -161, which of the following is not true?
161 ÷ 7 = 23
161 ÷ (-23) = 7
-161 ÷ 23 = -7
-161 ÷ (-7) = 23
161 ÷ 7 = 23
161 ÷ (-23) = 7
-161 ÷ 23 = -7
-161 ÷ (-7) = 23