This test uses JavaScript to generate your test and mark it. You therefore need to enable Scripting using the Preferences... item in one of the Menu items for this Browser's window. Once enabled, just Reload (Refresh) this page.

ALGEBRA - Review of Collecting Terms
Simplify the following expression:
–4 s – 2 s + 9 s – 2 s = s  

tickcross

Worked Solution:

–4 s – 2 s + 9 s – 2 s
Factor out the variable:
( –4 – 2 + 9 – 2)s
=s

© MEI Produced by Dr Ron Knott, 21 May 2004
tom . button [AT] mei . org . uk 		Test reference: AlgCollectTerms.html?ref=29992