Final answer:
To solve the inequality -9 + x ≤ 4, add 9 to both sides to get x ≤ 13, which is the solution.
Step-by-step explanation:
To solve the inequality -9 + x ≤ 4, we can simply isolate the variable x. Here's how we can solve this step by step:
- Add 9 to both sides of the inequality to get x ≤ 13.
- That's the solution: all values of x that are less than or equal to 13 satisfy the inequality.
This inequality did not require complex steps such as completing the square as might be seen in certain quadratic equations, nor did it involve utilizing the quadratic formula.