Select the correct combination of mathematical signs that can sequentially replace the # signs and balance the given equation.
71 # 8 # 21 # 3 # 17 # 4 # 2
1
-, +, ×, =, ÷, +
2
-, +, ÷, =, ×, +
3
+, -, ÷, ×, =, +
4
-, +, ÷, ×, =, +
Select the correct combination of mathematical signs that can sequentially replace the # signs and balance the given equation.
71 # 8 # 21 # 3 # 17 # 4 # 2