Question

(9-4-12)-1+(9-5-3)??

Answer 1

(9-4-12)-1+(9-5-3 )
1-2=1

Answer 2

Boa tarde. Tudo bem?

(9-4-12)-1+(9-5-3)
(9-16)-1+(9-8)
-7-1+1
-7

Bons estudos