Re: Inequalities

*To*: mathgroup at smc.vnet.net*Subject*: [mg78082] Re: [mg77978] Inequalities*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Fri, 22 Jun 2007 06:46:31 -0400 (EDT)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*References*: <200706210929.FAA24243@smc.vnet.net>*Reply-to*: murray at math.umass.edu

Exactly what did you type, and with which version of Mathematica? Did you remember to include the x as 2nd argument? In Mathematica 6.0: Reduce[-10<=3x+2<=10,x] -4 <= x <= 8/3 FindInstance[-10<=3x+2<=10,x] {{x -> 0}} Bruno Campanini wrote: > -10 <= 3x+2 <= 10 > > I tried with FindInstance and Reduce but was unable to > get the right range solution -4 <= x <= 8/3 > > Any suggestions. > > Bruno > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Inequalities***From:*"Bruno Campanini" <BC@gmail.com>