Find out pair of linear equation by substitute method - 3x-y=39x-3y=9

1.	Find out pair of linear equation by substitute method - 3x-y=39x-3y=9
Answer» 3x-y=3........19x-3y=9..(divided by 3)3x-y=3......23x=3-yX=3-y/3sub X in 13x-y=33(3-y/3)-y=33-y-y=3-2y=3-3y=0sub y in 23x-y=33x-0=33x=3X=1

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