Let's solve the given system of equations step-by-step:
$$\begin{cases}
2x = -8 + 5y \\
2x + 3y = -4
\end{cases}$$
First, let's express $$2x$$ from the first equation:
$$2x = -8 + 5y$$
Now, substitute this expression for $$2x$$ into the second equation:
$$(-8 + 5y) + 3y = -4$$
Simplify the equation:
$$-8 + 5y + 3y = -4$$
Combine like terms:
$$8y - 8 = -4$$
Add 8 to both sides of the equation:
$$8y = -4 + 8$$
$$8y = 4$$
Divide both sides by 8:
$$y = \frac{4}{8}$$
$$y = \frac{1}{2}$$
Now that we have the value of $$y$$, we can substitute it back into the expression for $$2x$$:
$$2x = -8 + 5y$$
$$2x = -8 + 5(\frac{1}{2})$$
$$2x = -8 + \frac{5}{2}$$
To combine these terms, we need a common denominator, which is 2. So, convert -8 to a fraction with denominator 2:
$$2x = -\frac{16}{2} + \frac{5}{2}$$
$$2x = \frac{-16 + 5}{2}$$
$$2x = \frac{-11}{2}$$
Now, divide both sides by 2 to solve for $$x$$:
$$x = \frac{-11}{2} \div 2$$
$$x = \frac{-11}{2} \cdot \frac{1}{2}$$
$$x = \frac{-11}{4}$$
So we have found the values for $$x$$ and $$y$$:
$$x = -\frac{11}{4}$$
$$y = \frac{1}{2}$$
Thus, the solution to the system of equations is $$x = -\frac{11}{4}$$ and $$y = \frac{1}{2}$$.
Answer: $$x = -\frac{11}{4}, y = \frac{1}{2}$$