To find the Thevenin voltage ($V_{th}$), we need to determine the open-circuit voltage across the terminals where $R_L$ is connected. Let's analyze the circuit step by step:

Circuit Recap:

• We have a circuit with resistors, voltage sources, and current sources.
• We want to find the open-circuit voltage across the terminals where $R_L$ is connected, which will be our $V_{th}$.

Steps to Find $V_{th}$:

1. Label the Circuit:

   • Identify the terminals across which $R_L$ is connected. We'll calculate the voltage across these terminals with $R_L$ removed (open circuit).

2. Simplify the Circuit:

   • Calculate the voltage across the terminals considering the effect of all the sources.

3. Use Superposition:

   • If the circuit has multiple sources, it can be useful to apply the superposition principle, where we consider the effect of each source separately and then sum the results.

Detailed Calculation:

Step 1: Identify Open-Circuit Voltage ($V_{th}$)

We'll focus on the circuit to find the open-circuit voltage across the load resistor, which is the voltage across the terminals when $R_L$ is not connected.

Step 2: Analyzing the Circuit

Let's denote the terminals where $R_L$ was connected as $A$ and $B$. We need to find the voltage $V_{AB}$, which is $V_{th}$.

Step 3: Apply Kirchhoff's Voltage Law (KVL) or Nodal Analysis

• We can use Nodal Analysis to find the voltage at point $A$ with respect to $B$.

Let’s break down the approach:

1. Determine the currents from the current sources and the voltages across each resistor.

2. Calculate the voltage at point $A$ with respect to ground using the voltage sources and resistors.

3. Find $V_{AB}$, which is $V_{th}$.

Step 4: Superposition Principle (if necessary)

If there are multiple independent sources, consider the contribution of each to the voltage across $AB$.

Step 5: Calculate $V_{th}$

• Combine the effects of each source (if using superposition) or directly calculate using the methods above.

---

Given the complexity and the small size of the image, it’s hard to manually compute without a clearer look at the circuit values. If you can provide clearer information about the specific values or components, I can complete the exact calculation.

Would you like to proceed with more detailed steps, or could you describe the circuit values in more detail?