Answer:
43
Step-by-step explanation:
( 8 - 9 ) - ( 32 - 40 ) + ( 16 + 20 )=
-1 - ( -8 ) + 36
-1 + 8 + 36
7 + 36
2 negatives become a positive.
Hope this helped!
Have a supercalifragilisticexpialidocious day!