Question

If x + 2y = 16 and 2x + y = 11 then without finding
the values of x and y find the value of x+y.​

Answer 1

Answer:

9

Step-by-step explanation:

adding both of the equations=3x+3y=27

taking 3 as common from both the sides

3(x+y)=3*9

x+y=9

Answer 2

Answer:

multiply equation 1 by 2

then , 2x+4y= 32_eq 3

now by using elemination method

2x+4y-2x-y=32-11

3y=21

y=7

putting y=7 in eq 1 we get

x=2

now

x+y=9