## Video Links 16-1

**Videos:**

Solving linear equations using graphing (time: 3:57)

Solving linear equations using substitution (time: 8:11)

http://www.youtube.com/watch?v=cwHR_B9zK7kSolving linear equations using addition (time: 9:59)

http://www.youtube.com/watch?v=ej25myhYcSg History of Mathematics… See the whole entry