Provide an example of a common algebraic expression question.

The example of solving for x in the equation 2x + 3 = 7 is a common algebraic expression question because it directly involves manipulating an algebraic equation to isolate the variable. In this case, the goal is to find the value of x that satisfies the equation.

To solve the equation, one would typically follow these steps: first, you would subtract 3 from both sides to eliminate the constant term on the left side, giving you 2x = 4. Then, you would divide both sides by 2 to isolate x, resulting in x = 2. This process emphasizes fundamental algebraic skills such as combining like terms, performing inverse operations, and working with equations, which are essential for understanding algebra as a whole.

In contrast, calculating the area of a circle involves a geometric concept, finding the derivative of a function pertains to calculus, and determining the slope of a line relates to linear functions and coordinates rather than pure algebraic equations. Thus, solving for x in an equation like 2x + 3 = 7 clearly aligns with algebraic expression tasks.