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Mathematics 8 Online
OpenStudy (anonymous):

I - 9 - 3 I subtract as indicated??

OpenStudy (anonymous):

Yes, then multiply it by -1 if it is negative.

OpenStudy (anonymous):

so - 27

OpenStudy (anonymous):

\[|-9-3|=|-12|\]The | | bars just mean\[|x|=\max(x,-x)\]Simply, if x is negative, just turn it into a positive number and you're done.

OpenStudy (anonymous):

okay thanks

OpenStudy (anonymous):

You're welcome.

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