Answer
3
Work Step by Step
The absolute value of a number $a$ is equal to $a$ if $a\geq0$ and is equal to $-a$ if $a\lt0$.
$-10\lt0$ and $-7\lt0$
Therefore, $|-10|-|-7|=10-7=3$.
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.