Answer
$K\geq-56$
Work Step by Step
Isolate the $K$-term on one side to solve the inequality for $K$. Make sure to flip the inequality when multiplying by a negative.
$\frac{K}{-4}+7\leq21$
$\frac{K}{-4}\leq14$
$K\geq-56$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.