If '÷' stands for 'addition', '+' stands for 'subtraction', 'x' stands for 'division and '–' stands for 'multiplication', then which of the following equations will NOT be correct?
1
36 ÷ 4 – 3 × 6 + 16 = 22
2
36 – 4 × 3 + 6 ÷ 16 = 60
3
36 × 4 + 3 – 6 ÷ 16 = 7
4
36 + 4 ÷ 3 × 6 – 16 = 40