Question

If D_x = 18, D_y = 15 and D = 3 are the values of the determinants for certain simultaneous equations in x and y, then find the values of x and y. 

Answer 1

D_x = 18, D_y = 15, D = 3

By Cramer's Rule

`x = (D_x)/D= 18/3 =6`

`y = (D_y)/D = 15/3 = 5`