Question

For the simultaneous equations in x and y if D=15, Dx=-30, Dy=-15,then find the value of y​

Answer 1

Step-by-step explanation:

The value of y = 3

Step-by-step explanation:

We have,

Dx = 27,Dy = 9 and D = 3

To find, the value of y = ?

∴ Dx = 27

Put D = 3, we get

⇒3\times x = 273×x=27

⇒ x = \dfrac{27}{3}=9x=

3

27

=9

⇒ x = 9

Also,

Dy = 9

⇒ 3\times y = 93×y=9

⇒ y = 3

Hence, the value of y = 3

hope it helps you