3x-8y=4
y = -0.25x + 2 | -0.25

3x-8y=4
y+1x/4 = 2 |*4

3x-8y = 4
X+4y = 2 | *-2

3x-8y=4
-2x-8y=-4

X = 0

…. in -0.25x+2 einsetzen
Y = -0.25*0 + 2
Y = 2

S(0|2)