f/1000=20000*y2+(f-20000)*0 f*3/1000=20000*y3+(f-20000)*0 f/5=20000*0+(f-20000)*x4 f*103/250=20000*19/20+(f-20000)*x5 f*379/1000=20000*y6+(f-20000)*49/50 y2+y3+19/20+y6=0

$$frac{f}{1000} = 20000 y_{2} + 0 left(f – 20000right)$$

f*3
—- = 20000*y3 + (f – 20000)*0
1000

$$frac{3 f}{1000} = 20000 y_{3} + 0 left(f – 20000right)$$

f
– = (f – 20000)*x4
5

$$frac{f}{5} = x_{4} left(f – 20000right)$$

f*103 20000*19
—– = ——– + (f – 20000)*x5
250 20

$$frac{103 f}{250} = x_{5} left(f – 20000right) + frac{380000}{20}$$

f*379 (f – 20000)*49
—– = 20000*y6 + ————–
1000 50

$$frac{379 f}{1000} = 20000 y_{6} + frac{1}{50} left(49 f – 980000right)$$

19
y2 + y3 + — + y6 = 0
20

$$y_{6} + y_{2} + y_{3} + frac{19}{20} = 0$$

$$y_{31} = frac{193}{19900}$$
=
$$frac{193}{19900}$$
=

0.00969849246231156

$$f_{1} = frac{38600000}{597}$$
=
$$frac{38600000}{597}$$
=

64656.6164154104

$$x_{41} = frac{386}{1333}$$
=
$$frac{386}{1333}$$
=

0.289572393098275

$$y_{21} = frac{193}{59700}$$
=
$$frac{193}{59700}$$
=

0.00323283082077052

$$x_{51} = frac{22801}{133300}$$
=
$$frac{22801}{133300}$$
=

0.171050262565641

$$y_{61} = – frac{57487}{59700}$$
=
$$- frac{57487}{59700}$$
=

-0.962931323283082

f1 = 64656.61641541038
x41 = 0.2895723930982746
x51 = 0.1710502625656414
y21 = 0.003232830820770519
y31 = 0.009698492462311558
y61 = -0.962931323283082