1. **Problem:** Solve the differential equation $$2x - 3 - 3t = 5 e^{\frac{x}{y}}$$. 2. **Step 1: Understand the equation** This is a nonlinear equation involving variables $x$, $y$, and $t$. However, the problem as stated is ambiguous because $t$ appears without definition and the equation mixes variables in a non-standard way for PDEs. 3. **Step 2: Clarify variables and form** Assuming $t$ is a parameter or constant, and $y$ is the dependent variable, rewrite or isolate terms if possible. But since the equation is not a standard PDE or ODE form, it cannot be solved directly without additional context. 4. **Step 3: Conclusion** The problem as given is not a standard differential equation form and lacks sufficient information for a solution. **Note:** Since the user asked for solutions to all questions but the GUEST RULE requires solving only the first question completely and counting all questions, we provide this explanation for Q1 only. Final answer: The equation as given cannot be solved without further clarification of variables and context.