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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Illustrative Mathematics
8th grade (Illustrative Mathematics)
Unit 4: Linear equations and linear systems
Lesson 3: Balanced moves
Equations with variables on both sides: 20-7x=6x-6
Equations with variables on both sides: 20-7x=6x-6
Sal solves the equation 20 - 7x = 6x - 6.
License: CC BY-NC-SA by Khan Academy