Step-by-step explanation:
[tex](5 + 4) \times 2 + 6 - (2 \times 2) - 1[/tex]
[tex]9 \times 2 + 6 - 4 - 1[/tex]
[tex]18 + 6 - (4 + 1)[/tex]
[tex]24 - 5[/tex]
[tex] = 19[/tex]
Hope it helps :)
