Complex Equality
1. **State the problem:** We are given the complex number $$-2 - i\sqrt{3}$$ and it is expressed as $$x + iy$$ where $$x$$ and $$y$$ are real numbers. We need to find the value of $$y$$ when $$y = x$$.
2. **Identify the real and imaginary parts:** In the complex number $$-2 - i\sqrt{3}$$, the real part is $$-2$$ and the imaginary part is $$-\sqrt{3}$$.
3. **Match with $$x + iy$$:** Since $$x + iy = -2 - i\sqrt{3}$$, we have:
$$x = -2$$
$$y = -\sqrt{3}$$
4. **Given condition:** $$y = x$$, so we set:
$$y = x$$
$$-\sqrt{3} = -2$$
5. **Check equality:** The equation $$-\sqrt{3} = -2$$ is not true because $$\sqrt{3} \approx 1.732$$ which is not equal to 2.
6. **Conclusion:** There is no value of $$x$$ and $$y$$ such that $$y = x$$ for the given complex number $$-2 - i\sqrt{3}$$. The values are fixed as $$x = -2$$ and $$y = -\sqrt{3}$$, and they are not equal.
**Final answer:** $$y \neq x$$ for the given complex number.