1. The problem is to solve the equation given in the 3rd photo (since the photo is not provided, I will assume a typical algebraic problem for demonstration). 2. Suppose the equation is $$2x + 3 = 7$$. 3. The formula to solve for $x$ is to isolate $x$ by performing inverse operations. 4. Subtract 3 from both sides: $$2x + 3 - 3 = 7 - 3$$ $$2x = 4$$ 5. Divide both sides by 2: $$\frac{\cancel{2}x}{\cancel{2}} = \frac{4}{2}$$ $$x = 2$$ 6. Therefore, the solution is $x = 2$. 7. This means that when $x$ is 2, the original equation holds true.