Added first method for linear system 2nd order 2eqs
Added first method for linear system 2nd order 2eqs

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