Answer
$x\geq6$
Work Step by Step
$1-(x+3)\geq4-2x\\1-x-3\geq4-2x\\-x-2\geq4-2x\\x-2\geq4\\x\geq6$
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.