Answer
$a-4b$
Work Step by Step
By combining like terms, the given expression, $
9a+b-8a-5b
,$ simplifies to
\begin{array}{l}\require{cancel}
(9a-8a)+(b-5b)
\\\\=
a-4b
.\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.