Question

1. solve $x - 20 leq -11$. then graph the solution.

Explanation:

Step1: Isolate x by adding 20

$x - 20 + 20 \leq -11 + 20$

Step2: Simplify both sides

$x \leq 9$

Step3: Graph the solution

On the number line, plot a closed circle at 9 (since the inequality includes equality, $\leq$), then draw an arrow pointing left to represent all values less than or equal to 9.

Answer:

The solution is $x \leq 9$.
For the graph: Mark a closed dot at 9 on the number line, and shade/arrow all points to the left of 9.