Solve the following pair of linear equations by substitution method :

1.	Solve the following pair of linear equations by substitution method : 3x + y -11=0 , x - y -1=0
Answer» 3x + y -11=0........... (i)x - y -1=0x = y + 1 ............ (ii)Substitute (ii) in (i), we get3(y+ 1) + y - 11 =03y + 3 + y - 11 =04y - 8 =04y = 8y = 8/2 =4Put y = 4 in (ii) , we getx = y + 1x= 5\xa0

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