1. The problem is to solve the equation without involving any coordinate system. 2. Since no specific equation is given, let's consider a general algebraic problem: solve for $x$ in the equation $2x + 3 = 7$. 3. The formula used here is to isolate $x$ by performing inverse operations. 4. Subtract 3 from both sides: $$2x + 3 - 3 = 7 - 3$$ which simplifies to $$2x = 4$$. 5. Divide both sides by 2 to solve for $x$: $$\frac{2x}{2} = \frac{4}{2}$$ which simplifies to $$x = 2$$. 6. Therefore, the solution to the equation $2x + 3 = 7$ is $x = 2$. 7. This method involves basic algebraic manipulation without any reference to coordinates or graphs.