Question

If x + 4 = 7, what is x?

• A. 1
• B. 2
• C. 3
• D. 4

Hint:

Even for simple equations, it's good practice to think in terms of inverse operations. The inverse of adding 4 is subtracting 4.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
This is a one-step linear equation. We need to solve for \(x\) by isolating it on one side of the equation.
Step 2: Detailed Explanation:
The equation is:
\[ x + 4 = 7 \] To isolate \(x\), subtract 4 from both sides of the equation:
\[ x = 7 - 4 \] \[ x = 3 \] Step 3: Final Answer:
The value of \(x\) is 3. This corresponds to option (C).