Answer:
+,+
÷,×
Step-by-step explanation:
-6+(-4)=-2×(-6+11)
-10=-2×5
-10=-10
5-(-15)÷3=-5×-2
5-(-15÷3)=-5×-2
5-(-5)=10
5+5=10
10=10
- and - gives a +
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