If - means ÷ , + means x , ÷ means - , x means +, then which of the following equations is correct?

• 43 x 7 ÷ 5 + 4 - 8 = 25
• 48 ÷ 5 + 8 x 10 - 2 = 03
• 36 x 4 - 12 + 5 ÷ 3 = 420
• 42 + 5 ÷ 6 x 8 - 3 = 28