[tex]7 \times (10 + ( - 3) \times ( + 5) - ( - 11)) + 41 = \\ 7 \times (10 - 15 - ( - 11)) + 41 = \\ 7 \ \times (10 - 15 + 11) + 41 = \\ 7 \times ( - 5 + 11) + 41 = \\ 7 \times 6 + 41 = \\ 42 + 41 = \\ 83[/tex]
