Question

Solve the following simultaneous equation using Cramer's rule.

x + 2y = -1; 2x - 3y =12​

Answer 1

D = -7

X= - 3

Y = - 2

Step-by-step explanation:

D = 1 2

2 -3

= (1 x - 3) - (2 x 2)

= - 3 - 4

=-7

Dx = 21

X = Dx/D = 21/-7 = - 3

Dy = 14

Y = Dy/D = 14/-7 = - 2

Hope ut helps you