Question

-3-{-4+(-5-1)-(-4-5)- 9}+2 resposta em pé

Answer 1

-3-{-4+(-5-1)-(-4-5)- 9}+2
-3-{-4+(-6)-(-9)-9}+2
-3-{-4-6+9-9}+2
-3-{-10}+2
-3+10+2
-3+12
9