Question

resolva as expressões -7-3+9-6+4-8+6-1

Answer 1

-7-3= -10 
+9-6 = +3
+4-8 =-4 
+6 -1 = +5 

-10+3-4+5 

-10 +3 =-7
-4 +5 =1 

-7 +1 = -6