the correct answer

Answer:

6 - 5 [ 2 ( 8 - 10 + 7 - ( -2 ) + 20 - 15 ) ]

=1 [ 2 - 2 + 7 - ( -2 ) + 5 ]

=1 [ 7 - ( -2 ) + 5 ]

=1 [ 9 + 5 ]

=1 + 14

=15

Step-by-step explanation:

Correct me if i'm wrong po :)