1. The problem is to solve an algebraic expression or equation using numbers only. 2. Since no specific problem was given, let's consider a simple example: Solve for $x$ in the equation $2x + 3 = 7$. 3. The formula to isolate $x$ is to subtract 3 from both sides and then divide by 2. 4. Subtract 3 from both sides: $2x + 3 - 3 = 7 - 3$ which simplifies to $2x = 4$. 5. Divide both sides by 2: $\frac{2x}{2} = \frac{4}{2}$ which simplifies to $x = 2$. 6. Therefore, the solution is $x = 2$. 7. This method applies to linear equations where the variable is to the first power and operations are addition, subtraction, multiplication, or division.