1.

3x-y=3;9x-3y=9 by sublimation method

Answer»

3x-y=3 -----(1)

9x-3y=9------(2)

x= 3+y / 3

9 ( 3+y / 3) = 9

27+9y /3 = 9

27 +9y = 9*3

9y = 27-27

9y =0

y=0/9

y=0

(put value of y in 1st equation)

3x-y=3

3x-0=3

3x=3

x=3/3

x = 1

(1,0)

therefore, value of x and y by substitution method is 1 and 0

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

X= 1 ,Y= 0 is the correct answer of the given question

x=1 AND y=0 hope you like it



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