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OpenStudy (anonymous):
4n-n?
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OpenStudy (anonymous):
3n
hero (hero):
4n - n = (4-1)n = 3n
OpenStudy (anonymous):
Combine like terms, 4n and n are like terms, therefore, you just subtract them, giving you 3n
hero (hero):
Ambassador Goodie
OpenStudy (anonymous):
:D
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