Math 8 Chapter 3 Lesson 7: Solve problems by making equations (continued)

Math 8 Chapter 3 Lesson 7: Solve problems by making equations (continued) 1. Summary of theory 1.1. Representing a quantity by an expression containing the implicit In fact, many variable quantities are interdependent. If one of these quantities is denoted by x, the other quantities can be expressed as an expression of the variable x. …

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