Question

) The value of Dx for the given equation x + 2 y = -1 ; 2x- 3 y = 12?​

Answer 1

a1= 1 b1= 2

a2= 2 b2= -3

Dx = 1 × -3 + 2 × 2

= -3 + 4

= 1

Hope it is helpfull