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6q + 9 ≤ 9 and 6q + 9 ≥ −9

User Llyle
by
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2 Answers

5 votes
Hello there!

6q + 9 ≤ 9

Start by subtracting 9 from both sides

6q + 9 - 9 ≤ 9 - 9

6q ≤ 0

Then divide both sides by 6

6q/6 ≤ 0/6

q ≤ 0

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The second equation
6q + 9 ≥ -9

Start by subtracting 9 from both sides

6q + 9 - 9 ≥ -9 - 9

6q ≥ -18

Divide both sides by 6

6q/6 ≥ -18/6

q ≥ -3


Good luck with your studies!
User Rimero
by
8.2k points
2 votes
If you combine both of these inequalities, you will get
-9 ≤ 6q + 9 ≤ 9

You can further simplify this be using the absolute value.
If you use the absolute value, you will get
| 6q + 9 | ≤ 9

If you're trying to solve for q, use
-9 ≤ 6q + 9 ≤ 9
Subtract all parts by 9
- 18 ≤ 6q ≤ 0
Divide all parts by 6
- 3 ≤ q ≤ 0

Have an awesome day! :)
User DivinesLight
by
8.1k points