1. Let's start by understanding that you want an explanation suitable for an 8th class student. 2. When solving math problems, it's important to break them down into simple steps. 3. For example, if you have an equation like $$2x + 3 = 7$$, you want to find the value of $x$. 4. First, subtract 3 from both sides: $$2x + 3 - 3 = 7 - 3$$ which simplifies to $$2x = 4$$. 5. Next, divide both sides by 2 to isolate $x$: $$\frac{2x}{2} = \frac{4}{2}$$ which gives $$x = 2$$. 6. This method works for many algebra problems: isolate the variable step by step. 7. Always remember to do the same operation on both sides of the equation to keep it balanced. 8. If you have a specific problem, please share it, and I will explain it step by step in a simple way.