Links
Pre-Algebra Textbook
Useful websites
Solving Equations
https://www.youtube.com/watch?v=kZoFI_fcC74
http://cms.gavirtualschool.org/Shared/Math/MSMath716/MSMath7_Equations_Shared/index.html
http://www.algebra-class-ecourse.com/Pre-Algebra/index.html
http://www.algebra-class-ecourse.com/Pre-Algebra/se-home-page.html
http://solveme.edc.org/Mobiles.html#play
Challenge yourself
https://www.khanacademy.org/math/algebra/absolute-value-equations-functions