3 years ago

9-(-9) How do you show your work for this question?

Mathematics

2 answers:

Marta_Voda [28]3 years ago

8 0

Answer: the answer is 18

Step-by-step explanation:

It is a double negative so just show below this equation

9-(-9)

9+9. Because of double negative

statuscvo [17]3 years ago

4 0

Since there are two subtraction symbols they turn into a plus sign. 9+9=18.

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