Answer
$-7$
Work Step by Step
Substituting $x$ with $10$ and $y$ with $3$, the given expression, $
y-x
,$ evaluates to
\begin{array}{l}\require{cancel}
3-10
\\\\=
-7
.\end{array}
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.