To solve the inequality \(-6n + 3 \geq 21\), follow these steps:
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Isolate the term with \(n\): \[ -6n + 3 \geq 21 \] Subtract 3 from both sides: \[ -6n \geq 21 - 3 \] \[ -6n \geq 18 \]
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Divide by -6: Remember that when you divide or multiply both sides of an inequality by a negative number, you must reverse the inequality sign. \[ n \leq \frac{18}{-6} \] \[ n \leq -3 \]
The solution to the inequality is: \[ n \leq -3 \]
Graphing the Solution:
To graph the solution \(n \leq -3\):
- Draw a number line.
- Locate the point -3 on the number line.
- Since \(n\) can be equal to -3, draw a closed (or filled) circle at -3.
- Shade to the left of -3 to indicate that all values less than -3 are included in the solution.
Description of the Graph:
The graph has a closed circle at -3 (indicating that -3 is included in the solution), and the shading extends to the left, representing all numbers less than -3. The graph visually shows that the solution encompasses all values down to negative infinity.