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For system of linear equation given by A bar(x)= bar(b) given reduced row ehblon form of [A∣b]" i.e "quad RREF(A∣b)=[[1,0,3,-1,-5],[0,1,5,-3,-4]]Rewriting equation's from RREF(AIb), we get{:[x_(1)+3x_(3)-x_(4)=-5],[x_(2)+5x_(3)-3x_(n)=-4]:}Take x_(3)=r and x_(4)=s, where r,s are real number's{:[=>x_(1)+3gamma-s=-5," and ",x_(2)+5gamma-3s=-4] ... See the full answer