Question

-(6-3)-(2-5+7)=
-(-7-8)-(4-3)-2=
-(4-7)+(2-3)=
-(7-3)-(5-2)-(12-6)=
-(5-2)+(4-6)-(8+2)=
-6+5-(7-4)+3=

Answer 1

-(6-3)-(2-5+7)= -3
-(-7-8)-(4-3)-2= 12
-(4-7)+(2-3)= 2
-(7-3)-(5-2)-(12-6)= -13
-(5-2)+(4-6)-(8+2)= -11
-6+5-(7-4)+3= -1
espero te ayude!!!