Question

solve the pair of linear equation 2x+y=12 and x-y=3 by elimination method​

Answer 1

x-y=3__×2

2x-2y=6

2x+y=12

2x-2y=6

- + -

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

3y=6

y=6/3

y=2

x-y=3

x-2=3

x=3+2

x=5

Answer 2

Answer:

x-y=_x2

2x-24=6

2x+4=12

2x24=6

-+-

3y=6

y=6/3

y=2

x-y=3

x-2=3

x=3+2

x=5.