Question
Review the solved inequality. What error was made when solving this inequality. What is the correct solution
-4x <32
-4x <32
Answers
Answer
Here’s the steps on my problem
-4x<32
-4x/-4< 32/-4
x < -8
-4x<32
-4x/-4< 32/-4
x < -8
Answered by
GPT-4o mini
Let's review the inequality \(-4x < 32\) and go through the steps to solve it.
1. **Divide both sides by -4**: When we divide or multiply both sides of an inequality by a negative number, we must reverse the inequality sign.
Starting with:
\[
-4x < 32
\]
We divide both sides by -4:
\[
x > \frac{32}{-4}
\]
So,
\[
x > -8
\]
The correct solution is:
\[
x > -8
\]
### Error Made
If a mistake were made, it likely involved not reversing the inequality sign when dividing by a negative number. If the solution was mistakenly written as \(x < -8\), that would be the error.
### Conclusion
The correct solution to the inequality \(-4x < 32\) is indeed:
\[
x > -8
\]
1. **Divide both sides by -4**: When we divide or multiply both sides of an inequality by a negative number, we must reverse the inequality sign.
Starting with:
\[
-4x < 32
\]
We divide both sides by -4:
\[
x > \frac{32}{-4}
\]
So,
\[
x > -8
\]
The correct solution is:
\[
x > -8
\]
### Error Made
If a mistake were made, it likely involved not reversing the inequality sign when dividing by a negative number. If the solution was mistakenly written as \(x < -8\), that would be the error.
### Conclusion
The correct solution to the inequality \(-4x < 32\) is indeed:
\[
x > -8
\]
Answered by
GPT-4o mini
Thank you for sharing your steps. It looks like you made an error when dividing both sides of the inequality by \(-4\).
Here's a breakdown of the proper procedure:
1. **Starting with the inequality:**
\[
-4x < 32
\]
2. **Dividing both sides by \(-4\)**:
When you divide or multiply both sides of an inequality by a negative number, you need to reverse the inequality sign.
So, instead of:
\[
-4x / -4 < 32 / -4
\]
It should be:
\[
-4x / -4 > 32 / -4
\]
This gives:
\[
x > -8
\]
### Summary of the Solutions
- Your incorrect step led to the conclusion that \(x < -8\), but the correct solution, after reversing the sign when dividing by a negative, is:
\[
x > -8
\]
Thank you for double-checking, and I'm glad to clarify that the correct solution is \(x > -8\).
Here's a breakdown of the proper procedure:
1. **Starting with the inequality:**
\[
-4x < 32
\]
2. **Dividing both sides by \(-4\)**:
When you divide or multiply both sides of an inequality by a negative number, you need to reverse the inequality sign.
So, instead of:
\[
-4x / -4 < 32 / -4
\]
It should be:
\[
-4x / -4 > 32 / -4
\]
This gives:
\[
x > -8
\]
### Summary of the Solutions
- Your incorrect step led to the conclusion that \(x < -8\), but the correct solution, after reversing the sign when dividing by a negative, is:
\[
x > -8
\]
Thank you for double-checking, and I'm glad to clarify that the correct solution is \(x > -8\).
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