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solve for x and graph the solution on the number line below. 16 < 3x + …

Question

solve for x and graph the solution on the number line below. 16 < 3x + 7 ≤ 25 answer attempt 1 out of 2 < > ≤ ≥ or inequality notation: number line:

Explanation:

Step1: Subtract 7 from all parts

$$\begin{align*} 16 - 7&<3x+7 - 7\leq25 - 7\\ 9&<3x\leq18 \end{align*}$$

Step2: Divide all parts by 3

$$\begin{align*} \frac{9}{3}&<\frac{3x}{3}\leq\frac{18}{3}\\ 3&

Answer:

Inequality Notation: \(3 < x\leq6\)

To graph on the number - line:

  • Draw an open circle at \(x = 3\) (because \(x>3\), the value \(x = 3\) is not included in the solution set).
  • Draw a closed circle at \(x = 6\) (because \(x\leq6\), the value \(x = 6\) is included in the solution set).
  • Connect the two points with a line segment.