Question

Solve by cramers rule.

x-3y = 1 ; 3x-2y -4​

Answer 1

Answer:

X- 3Y = 1

3X - 2Y = 4

D = 1 -3

3 -2

= 1 × ( -2 ) - ( -3 × 3 )

= - 2 + 9

= 7

Dx = 1 -3

4 -2

= 1 × ( -2 ) - ( -3 × 4 )

= -2 + 12

= 10

Dy = 1 1

3 4

= 1 × 4 - 1 × 3

= 4 - 3

= 1

X = Dx / D

x = 10 / 7

Y = Dy / D

Y = 1 / 7

Answer 2

Answer:

x- 3y = 1; 3x- 2y + 4 =0 crammer method answer