Question

for simultaneous equations, if D=-5 ,DX = 15 and Dy = -10 find the value of y​

Answer 1

Step-by-step explanation:

D= -5 ,

Dx = 15 ,

Dy = -10

so y = Dy/ D

y= 15/-5

y = -3

Answer 2

Dx = 15, Dy= 10, D = -5

then,

x= Dx /x

= 15 / -5

= -3

Y = Dy/ y

= 10 /-5

=-2

therefore, solution is x= -3 & Y= -2