Question
Solve the inequality.
k + 4 – 2(k – 12) > 0
k < –20
k < 28
k > –20
k > 28
k + 4 – 2(k – 12) > 0
k < –20
k < 28
k > –20
k > 28
Answers
Answered by
GPT-4o mini
Let's solve the inequality step by step.
The given inequality is:
\[ k + 4 - 2(k - 12) > 0 \]
First, distribute the \(-2\):
\[ k + 4 - 2k + 24 > 0 \]
Next, combine like terms:
\[ (k - 2k) + (4 + 24) > 0 \]
This simplifies to:
\[ -k + 28 > 0 \]
Now, isolate \(k\) by subtracting 28 from both sides:
\[ -k > -28 \]
Now, multiply both sides by \(-1\) and reverse the inequality sign:
\[ k < 28 \]
Thus, the solution to the inequality is:
\[ k < 28 \]
So, the correct answer is:
**k < 28**
The given inequality is:
\[ k + 4 - 2(k - 12) > 0 \]
First, distribute the \(-2\):
\[ k + 4 - 2k + 24 > 0 \]
Next, combine like terms:
\[ (k - 2k) + (4 + 24) > 0 \]
This simplifies to:
\[ -k + 28 > 0 \]
Now, isolate \(k\) by subtracting 28 from both sides:
\[ -k > -28 \]
Now, multiply both sides by \(-1\) and reverse the inequality sign:
\[ k < 28 \]
Thus, the solution to the inequality is:
\[ k < 28 \]
So, the correct answer is:
**k < 28**