Question

efetue as expressões algebricas
1 (-3)+(-2)+(-1)-(-7)
2 (-12)+(+16)-(+15)
3 (+3)+(-15)-(-18)
4 (-23)-(-15)+(+12)=(+13)
5 (+21)-(-12)-(+14)-(+12)
6 (+17)-(-15)+(-18)-(+3)
7 (-18)+(-15)+(-2)-(-5)
8 (-27)+(+30)-(+14)+(-11)
9 (28)+(-10)-(-2)-(+20)
me ajudem preciso das expressões montadas!!!

Answer 1

1
-3 -2 -1 +7
-6 +7
1
2
-12 +16 -15
-27 +16
-11
3
+3 -15 +18
+21 -15
6
4
-23 +15 +12 +13
+40 -23
+17
5
+21 +12 -14 -12
+33 -26
+7