Question

7) If x+2y=5 and 2x+y=7 then find the value of x+y​

Answer 1

Step-by-step explanation:

Answer:

x + y = 4

Explanation:

Given x+2y = 5----( 1 )

2x+y = 7----(2)

Add (1) and (2), we get

=> 3x + 3y = 12

Divide each term by 3,we get

=> x + y = 4

Therefore,

x + y = 4

Answer 2

Answer:

4

Step-by-step explanation:

x+2y=5

2x +y =7

x+2y= 5

4x+ 2y =14

subtract two equations we get

3x= 9

x= 3

y=1

x+y = 4