1.

pratisthapan Vidhi se 3x-y=3 , 9x3y=9

Answer»

3x-y=3........19x-3y=9..(divided by 3)3x-y=3......2

3x=3-yX=3-y/3

sub X in 13x-y=33(3-y/3)-y=33-y-y=3-2y=3-3

y=0

sub y in 2

3x-y=33x-0=33x=3

X=1

(3x-y =3)3= 9x - 3y = 9; 9x+3y = 9:; 9x + 3y =9/6y =18; y = 18/6=3, ; 3x -3=3; 3x= 6:; x= 6/3=2



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