If + is xm - is +, x is ÷ and ÷ is -, then what is the value of given equation 21 ÷ 8 + 2 - 12 × 3 = ?
(A) 14
(B) 9
(C) 13.5
(D) 11
(B) Using the proper signs, we get
21 - 8 × 2 + 12 ÷ 3 = 21 - 8 × 2 + 4
= 21 - 16 + 4 = 9.