minor correction of  solve_linear() doc
minor correction of  solve_linear() doc

vipulroxx/sympy,ChristinaZografou/sympy,chaffra/sympy,dqnykamp/sympy,kumarkrishna/sympy,liangjiaxing/sympy,Mitchkoens/sympy,meghana1995/sympy,Arafatk/sympy,jbbskinny/sympy,moble/sympy,diofant/diofant,atsao72/sympy,sunny94/temp,beni55/sympy,garvitr/sympy,kaushik94/sympy,debugger22/sympy,emon10005/sympy,garvitr/sympy,Gadal/sympy,wyom/sympy,Curious72/sympy,iamutkarshtiwari/sympy,shikil/sympy,oliverlee/sympy,Vishluck/sympy,Arafatk/sympy,AunShiLord/sympy,aktech/sympy,bukzor/sympy,ChristinaZografou/sympy,abhiii5459/sympy,Designist/sympy,saurabhjn76/sympy,beni55/sympy,jerli/sympy,Gadal/sympy,yashsharan/sympy,MridulS/sympy,postvakje/sympy,shikil/sympy,MechCoder/sympy,postvakje/sympy,Shaswat27/sympy,kaichogami/sympy,Titan-C/sympy,Davidjohnwilson/sympy,kmacinnis/sympy,kumarkrishna/sympy,kaushik94/sympy,mafiya69/sympy,Curious72/sympy,rahuldan/sympy,chaffra/sympy,sahilshekhawat/sympy,kevalds51/sympy,abloomston/sympy,skidzo/sympy,Arafatk/sympy,rahuldan/sympy,toolforger/sympy,souravsingh/sympy,postvakje/sympy,mafiya69/sympy,cccfran/sympy,pandeyadarsh/sympy,garvitr/sympy,farhaanbukhsh/sympy,cswiercz/sympy,jamesblunt/sympy,grevutiu-gabriel/sympy,meghana1995/sympy,AkademieOlympia/sympy,pbrady/sympy,atsao72/sympy,kevalds51/sympy,atreyv/sympy,yukoba/sympy,ChristinaZografou/sympy,madan96/sympy,sampadsaha5/sympy,AunShiLord/sympy,Vishluck/sympy,meghana1995/sympy,hrashk/sympy,amitjamadagni/sympy,MridulS/sympy,sahmed95/sympy,shipci/sympy,maniteja123/sympy,abloomston/sympy,cswiercz/sympy,Vishluck/sympy,kevalds51/sympy,sahilshekhawat/sympy,skidzo/sympy,emon10005/sympy,sampadsaha5/sympy,shipci/sympy,Titan-C/sympy,Gadal/sympy,kumarkrishna/sympy,Davidjohnwilson/sympy,pandeyadarsh/sympy,ahhda/sympy,rahuldan/sympy,sahmed95/sympy,debugger22/sympy,iamutkarshtiwari/sympy,pandeyadarsh/sympy,sunny94/temp,iamutkarshtiwari/sympy,kaichogami/sympy,shikil/sympy,jerli/sympy,oliverlee/sympy,ahhda/sympy,toolforger/sympy,jerli/sympy,hargup/sympy,drufat/sympy,Mitchkoens/sympy,liangjiaxing/sympy,AkademieOlympia/sympy,sampadsaha5/sympy,vipulroxx/sympy,emon10005/sympy,liangjiaxing/sympy,souravsingh/sympy,jaimahajan1997/sympy,mcdaniel67/sympy,wyom/sympy,VaibhavAgarwalVA/sympy,VaibhavAgarwalVA/sympy,hargup/sympy,atreyv/sympy,AunShiLord/sympy,yukoba/sympy,saurabhjn76/sympy,lindsayad/sympy,lidavidm/sympy,ga7g08/sympy,sunny94/temp,yashsharan/sympy,Sumith1896/sympy,abhiii5459/sympy,maniteja123/sympy,jamesblunt/sympy,madan96/sympy,mcdaniel67/sympy,sahmed95/sympy,Sumith1896/sympy,asm666/sympy,wanglongqi/sympy,kmacinnis/sympy,cccfran/sympy,wyom/sympy,bukzor/sympy,aktech/sympy,souravsingh/sympy,Davidjohnwilson/sympy,moble/sympy,abhiii5459/sympy,saurabhjn76/sympy,mafiya69/sympy,cswiercz/sympy,bukzor/sympy,jbbskinny/sympy,cccfran/sympy,AkademieOlympia/sympy,MechCoder/sympy,hargup/sympy,Shaswat27/sympy,abloomston/sympy,jbbskinny/sympy,pbrady/sympy,jaimahajan1997/sympy,pbrady/sympy,ga7g08/sympy,atsao72/sympy,Mitchkoens/sympy,kaushik94/sympy,shipci/sympy,drufat/sympy,maniteja123/sympy,chaffra/sympy,Designist/sympy,Curious72/sympy,wanglongqi/sympy,Titan-C/sympy,MridulS/sympy,beni55/sympy,toolforger/sympy,kaichogami/sympy,wanglongqi/sympy,lidavidm/sympy,ga7g08/sympy,yashsharan/sympy,grevutiu-gabriel/sympy,sahilshekhawat/sympy,asm666/sympy,hrashk/sympy,amitjamadagni/sympy,jamesblunt/sympy,lidavidm/sympy,asm666/sympy,VaibhavAgarwalVA/sympy,hrashk/sympy,lindsayad/sympy,jaimahajan1997/sympy,farhaanbukhsh/sympy,oliverlee/sympy,moble/sympy,Sumith1896/sympy,debugger22/sympy,grevutiu-gabriel/sympy,drufat/sympy,aktech/sympy,skirpichev/omg,Designist/sympy,mcdaniel67/sympy,madan96/sympy,lindsayad/sympy,MechCoder/sympy,ahhda/sympy,vipulroxx/sympy,atreyv/sympy,kmacinnis/sympy,dqnykamp/sympy,dqnykamp/sympy,Shaswat27/sympy,skidzo/sympy,yukoba/sympy,farhaanbukhsh/sympy