Question

82-7•6+9...82-(7•6-19)

Answer 1

82-7*6+9 > 82-(7*6-19)
          
7*6=42, 42+9=51, 82-51=31     >      | 7*6= 42, 42 - 19 = 23.

Answer 2

42-19

Answer 3

=23

Answer 4

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