**python**:

7 = -10zt + 4yzt - 5yt + 4tz^2

3 = 2yzt + 5yt

1 = - 10t + 2yt + 4zt

Therefore I need to solve for y,z, and t.

**Attempt to solve the problem:**

Code:

```
def equations(p):
y,z,t = p
f1 = -10*z*t + 4*y*z*t - 5*y*t + 4*t*z^2 - 7
f2 = 2*y*z*t + 5*y*t - 3
f3 = - 10*t + 2*y*t + 4*z*t - 1
return (f1,f2,f3)
y,z,t = fsolve(equations)
print equations((y,z,t))
```

**scipy.optimize.fsolve**then I should input an initial guess. In my case, I do not have initial conditions.

Is there another way to solve 3 nonlinear equations with 3 unknowns in python?