Question

solve 3x > -21. the solution of the inequality is . graph the solution.

Explanation:

Step1: Isolate x

Divide both sides of $3x > - 21$ by 3. Since 3 is positive, the inequality sign remains the same. So $x>\frac{-21}{3}$.

Step2: Calculate the value

$\frac{-21}{3}=-7$, so $x > - 7$.

Answer:

$x > - 7$; For the graph, we use an open - circle at $x=-7$ (because $x$ is strictly greater than - 7) and an arrow pointing to the right on the number line.