Question

solve 2x +y = 5 and 4x + 2y = 10 by the method od elimination​

Answer 1

EXPLANATION.

⇒ 2x + y = 5. - - - - - (1).

⇒ 4x + 2y = 10. - - - - - (2).

As we know that,

We can write equation (1) as,

⇒ 2x + y = 5. - - - - - (1).

⇒ y = 5 - 2x. - - - - - (1).

Put the value of y = 5 - 2x in equation (2), we get.

⇒ 4x + 2(5 - 2x) = 10.

⇒ 4x + 10 - 4x = 10.

⇒ x = 0.

Put the value of x = 0 in equation (1), we get.

⇒ y = 5 - 2x.

⇒ y = 5 - 2(0).

⇒ y = 5.

Values of x = 0 and y = 5