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olganol [36]
3 years ago
12

Please help me to solve this question​

Chemistry
1 answer:
Amanda [17]3 years ago
3 0

Answer:

+,+

÷,×

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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