To solve the inequality \(-6n + 3 \geq 21\), we can follow these steps:
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Isolate the variable term: \(-6n + 3 \geq 21\)
Subtract 3 from both sides: \(-6n \geq 21 - 3\)
Simplifying the right side: \(-6n \geq 18\)
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Divide by -6: Since we are dividing by a negative number, we must reverse the inequality: \(n \leq \frac{18}{-6}\)
This simplifies to: \(n \leq -3\)
So, the solution to the inequality is: \[ n \leq -3 \]
Graphing the Solution
On a number line:
- Draw a horizontal line that represents the number line.
- Mark -3 on the number line.
- Since the inequality is "less than or equal to," we use a closed dot at -3 to indicate that -3 is included in the solution.
- Shade everything to the left of -3 to represent all numbers less than -3.
Description of the Graph
The graph of the inequality would show a closed dot at -3 with a shaded line extending to the left, indicating all values that are less than or equal to -3 are part of the solution set.