1. Let's state the problem: Given the exercise number 1 as an example, we need to show how to solve it. 2. Since the problem details are not provided, let's assume a basic example problem: Solve for $x$ in the equation $2x + 3 = 7$. 3. To isolate $x$, subtract $3$ from both sides: $$2x + 3 - 3 = 7 - 3$$ $$2x = 4$$ 4. Next, divide both sides by $2$ to solve for $x$: $$x = \frac{4}{2} = 2$$ 5. So the solution is $x = 2$. This example demonstrates a typical way to solve a simple linear equation by isolating the variable step by step.