Question

iii) If x + 2y = 5 and 2x + y = 4, then find the
value of x+y​

Answer 1

Answer:

The value of x +y is 3

Step-by-step explanation:

Here we have been given two equations which are as below and we have to find the value of x + y as below:

$x + 2y = 5$

$2x + y = 4$

Now adding these both equations we get,

$3x + 3y = 9$

⇒ $3(x+y) = 9$

⇒ $(x+y) = 3$

Therefore the value of x + y is 3

Answer 2

Answer:

iii) If x + 2y = 5 and 2x + y = 4, then find the

value of x+y

Step-by-step explanation:

x + 2y = 5

underline +2x+ y underline =7

3x + 3y = 12

therefore x+y= 12 3 =4