Question

17. Solve:
2x + y = 11
x + y = 8​

Answer 1

Answer:

x=3

y=5

Please mark as brainliest.

Step-by-step explanation:

2x+y=11 - Equation 1

x+y=8 - Equation 2

By solving equation 1 and equation 2 by elimination method, we get -

2x + y=11

1x +  y= 08

(-)    (-)    (-)

-----------------

x=3  (We have changed the signs as we are doing subtraction)

By keeping x=3 in equation 2, we get -

x+y=8

3+y=8

y=8-3

y=5

Answer 2

Answer:

2x + y = 11 ---------------------------Equation 1

x + y = 8​----------------------------Equation 2

Change signs,

2x + y = 11

-x - y = -8​

We get,

2x - x + y - y = 11 - 8

x = 3

By substituting the value of x in eq 2 we get,

3 + y = 8

y = 8 - 3

y = 5

Hope this helps you..............................

Plz mark me the brainliest