Question

Solve the equation graphically x+y=8 2x-y=7​

Answer 1

Answer:

x+y =8. eq (1)

2x-y =7. eq (2)

Adding eq (1) and eq(2)

2x+y =7

(+)x-y =8

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

3x. =15

x=15/3

x=5. (3)

Substituting (3) in (1)

x+y=8

5+y=8

y=8-5

i.e y=3