Patterns+&+Relations+-+Variables+&+Equations

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B2
Model and solve problems using linear equations of the form: concretely, pictorially, and symbolically, where a, b, and c are integers.
 * ax = b
 * x/a = b, a ≠ 0
 * ax + b = c
 * x/a + b = c ,a ≠ 0
 * a(x + b) = c

http://highered.mcgraw-hill.com/sites/0070973385/student_view0/chapter10/

**Algebra Balance Scales -** Solve simple linear equations using a balance beam representation. [|Algebra (6–8)], [|Algebra (9–12)] (National Library of Virtual Manipulatives) **Algebra Balance Scales - Negatives -** Solve simple linear equations using a balance beam representation. [|Algebra (6–8)], [|Algebra (9–12)] (National Library of Virtual Manipulatives)

Ted Talks: In Six Minutes Or Less Terry Moore on "Why Is 'x' The Unknown?"

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