Answer
Interval: [-10, 10]
Work Step by Step
$|2x|\leq 20$
$-20\leq 2x\leq 20$
$-20/2\leq 2x/2\leq 20/2$
$-10\leq x\leq 10$
Interval: [-10, 10]
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.