10x - 2y = 2
-4x + 4y = 20
y = 5x - 1
- 4x + 4y = 20
- 4x - 4 ( 5x - 1 ) = 20
16x - 24 = 0
x = 1 , 5
y = 6 , 5
10x - 2y = 2
-4x + 4y = 20
y = 5x - 1
- 4x + 4y = 20
y = 5x - 1
- 4x - 4 ( 5x - 1 ) = 20
y = 5x - 1
16x - 24 = 0
y = 5x - 1
x = 1 , 5
y = 6 , 5
x = 1 , 5