Question

2 12 years ago

Answer 1

:) giv me medal

Answer 2

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

Answer 3

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

Answer 4

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

Answer 5

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

Answer 6

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