Question

graphical method:2x+y=10
x+y=6​

Answer 1

Answer:

2x+y=10

put y=10

2x+0=10

x=10/2

x=5

x+y=6

put y=2

x+2=6

x=6/2

X=3

Answer 2

2x+y=0

y=10-2×x

x+y=6

y=6-x

use this method