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Mathematics 18 Online
OpenStudy (anonymous):

|-9| - (-8) = ?

OpenStudy (anonymous):

1

OpenStudy (anonymous):

The answer is 17 but I don't get how they got that..

Directrix (directrix):

|-9| - (-8) = 9 - (-8) = 9 + 8 = 17

OpenStudy (anonymous):

|dw:1333663524887:dw|

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