A.Solve the system of linear equations using Graphical Method.
1. 2x–y=4
2. 2x–3y=-6

B. Solve the system of linear equations using elimination method.
1. x+y=10
x–y=6
2. x+y=8
x-Y=-2

C. Solve the system of linear equations using substitution method
1.x+y=9
x–y=5

2.x+y=1
2x+y=-3