1. Problem: The user asks to "Susstavi neka budu," which translates to "Make some equations" or "Set some to be." Since the request is vague, let's create a simple algebraic equation to demonstrate. 2. Let's consider the equation $2x + 3 = 7$. 3. Formula used: To solve for $x$, we use the rule of isolating the variable by performing inverse operations. 4. Step-by-step solution: 1. Start with the equation: $2x + 3 = 7$ 2. Subtract 3 from both sides to isolate the term with $x$: $2x + 3 - 3 = 7 - 3$ 3. Simplify: $2x = 4$ 4. Divide both sides by 2 to solve for $x$: $\frac{2x}{2} = \frac{4}{2}$ 5. Simplify: $x = 2$ 5. Explanation: We performed inverse operations to isolate $x$. First, we removed the constant term by subtracting 3, then we divided by the coefficient of $x$ to find its value. Final answer: $x = 2$