411 REFERENCE · Wikibooks
Basic Algebra/Proportions and Proportional Reasoning/Chapter Test
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Please post your test problems this way:
Problem:(answer,level of difficulty(easy, medium, hard))
Example 2x=6: (x=3,easy)
2+2=x (x=4,easy)