sqrt(x)+sqrt(y)=10 x-y=40

x – y = 40

49

$$y_{1} = 9$$
=
$$9$$
=

9

x1 = 49.0 – 1.762580967858863e-33*i
y1 = 9.0 – 1.762580967858863e-33*i

x2 = 49.0 + 1.233416056509733e-35*i
y2 = 9.0 + 1.233416056509733e-35*i

x3 = 49.0 + 5.664476045473831e-19*i
y3 = 9.0 + 5.664476045473831e-19*i

x4 = 49.0 – 2.942865832342508e-20*i
y4 = 9.0 – 2.942865832342508e-20*i

x5 = 49.0 + 4.005055669709873e-27*i
y5 = 9.0 + 4.005055669709873e-27*i

x6 = 49.0 + 1.368140434675098e-21*i
y6 = 9.0 + 1.368140434675098e-21*i

x7 = 49.0 + 3.290760665822773e-22*i
y7 = 9.0 + 3.290760665822773e-22*i

x8 = 49.0 + 4.028715596729014e-37*i
y8 = 9.0 + 4.028715596729014e-37*i

x9 = 49.0 – 5.01406790760636e-19*i
y9 = 9.0 – 5.01406790760636e-19*i

x10 = 49.0 – 2.39068133971096e-20*i
y10 = 9.0 – 2.39068133971096e-20*i

x11 = 49.0 + 3.348885505497991e-25*i
y11 = 9.0 + 3.348885505497991e-25*i

x12 = 49.0 – 2.128184031827919e-30*i
y12 = 9.0 – 2.128184031827919e-30*i

x13 = 49.0 + 2.783363075001933e-20*i
y13 = 9.0 + 2.783363075001933e-20*i

x14 = 49.0 + 5.744761534774174e-21*i
y14 = 9.0 + 5.744761534774174e-21*i

x15 = 49.0 + 8.144027791067659e-22*i
y15 = 9.0 + 8.144027791067659e-22*i

x16 = 49.0000000000000
y16 = 9.00000000000000

x17 = 49.0 + 2.557682681784929e-19*i
y17 = 9.0 + 2.557682681784929e-19*i

x18 = 49.0 + 2.986818758007162e-21*i
y18 = 9.0 + 2.986818758007162e-21*i

x19 = 49.0 – 5.249368208963138e-24*i
y19 = 9.0 – 5.249368208963138e-24*i

x20 = 49.0 – 6.365100114337813e-20*i
y20 = 9.0 – 6.365100114337813e-20*i

x21 = 49.0 – 7.151467846709382e-22*i
y21 = 9.0 – 7.151467846709382e-22*i