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Mathematics 17 Online
OpenStudy (anonymous):

7a-3.9a=6.2

OpenStudy (saifoo.khan):

(7-3.9)a = 6.2 3.1a = 6.2 a = 6.2/3.1 a = 2

OpenStudy (anonymous):

thnk

OpenStudy (saifoo.khan):

welk

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