Question

calcule o valor das expreesoes d) (8+5):(2-5)= e) (+2).(-6)+(-5).(-3)= f

Answer 1

(8+5):(2-5)=
13:(-3)=
-13/3 ou -4,3333....


(+2).(-6)+(-5).(-3)=
(-12)+(+15)=
-12+15=
+3