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I need help i dont understand it

I need help i dont understand it
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2 votes
I need help i dont understand it

I need help i dont understand it-example-1
User Ronak Dumaniya
by
8.1k points

1 Answer

5 votes
a) because it means -10 - 10 which is zero.
all the others add up to things like 10, etc
































posted by a pre-algebra seventh grader
User Simmetric
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