Answer :
{ 2x - 4y = 24
{ - 6x + 4y = - 24 ⇒ ( - 4y + 4y = 0 )
2x - 6x = 24 - 24
- 4x = 0 .(-1)
4x = - 0
x = - 0
4
x = 0
2x - 4y = 24
2.0 - 4y = 24
0 - 4y = 24
- 4y = 24 .(-1)
4y = - 24
y = - 24
4
y = - 6
S = { 0,-6}
{ - 6x + 4y = - 24 ⇒ ( - 4y + 4y = 0 )
2x - 6x = 24 - 24
- 4x = 0 .(-1)
4x = - 0
x = - 0
4
x = 0
2x - 4y = 24
2.0 - 4y = 24
0 - 4y = 24
- 4y = 24 .(-1)
4y = - 24
y = - 24
4
y = - 6
S = { 0,-6}