Question

1) To solve x+y=3, 3x – 2y-4=0 by determinant method find Dy.​

Answer 1

Answer:

X+y= 3 ---------1

3x- 2y -4=0. -------2

in eq 1 multiplied by 3, in eq second multipleid by 1.

3x+ 3y= 9

-3x- 2y =_4

___________

y=5

putting the value of y in eq 1

X +y =3

X +5 =3

X =3 -5

X= -2

Step-by-step explanation:

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