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Mathematics 18 Online
OpenStudy (anonymous):

Evaluate: -7 - 10

OpenStudy (anonymous):

-17

OpenStudy (anonymous):

It's like -7 + -10

OpenStudy (anonymous):

-17 ^___^

OpenStudy (anonymous):

Thank guys

OpenStudy (anonymous):

and when you see ---> ( + -) together you automatically subtract.

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