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Mathematics 21 Online
OpenStudy (anonymous):

Simplifying fractions (i will post the question in a picture attachment)

OpenStudy (anonymous):

here it is please help

OpenStudy (tkhunny):

Roughly speaking, what is -3 - (-12)?

OpenStudy (anonymous):

-15

OpenStudy (tkhunny):

No, that's -3 - 12. What is -3 - (-12)?

OpenStudy (anonymous):

uhm I didn't know the parentheses actually made a difference I need to reevaluate

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