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Mathematics 27 Online
OpenStudy (anonymous):

2

OpenStudy (aravindg):

:) giv me medal

OpenStudy (anonymous):

i got -3/7, 2/7 but it says im wrong

OpenStudy (zarkon):

\[2\leq 7x+5<7\] \[2-5\leq 7x<7-5\] \[\frac{2-5}{7}\leq x<\frac{7-5}{7}\] \[\frac{-3}{7}\leq x<\frac{2}{7}\]

OpenStudy (anonymous):

thats what i got but it says its incorrect, im think im suppose to us U or \[\infty\] but im not sure how to use it

OpenStudy (zarkon):

that is the answer http://www.wolframalpha.com/input/?i=2+%3C%3D+7x%2B5+%3C+7&t=ietb01

OpenStudy (zarkon):

maybe write it like this ... [-3/7,2/7)

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