1. The problem is to solve a basic algebra question suitable for year 8 level. 2. Let's consider a simple example: Solve for $x$ in the equation $2x + 3 = 11$. 3. The formula used here is to isolate $x$ by performing inverse operations. 4. First, subtract 3 from both sides: $$2x + 3 - 3 = 11 - 3$$ which simplifies to $$2x = 8$$ 5. Next, divide both sides by 2 to solve for $x$: $$\frac{\cancel{2}x}{\cancel{2}} = \frac{8}{2}$$ which simplifies to $$x = 4$$ 6. So, the solution is $x = 4$. 7. This method can be used to solve similar linear equations by isolating the variable step-by-step.