Unit 1 Review.pdf

# Unit 1 Review.pdf - 1.1 Solving One-Step Linear Equations...

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1.1: Solving One-Step Linear Equations Equation: a statement that two expressions are equal ( like 3? + 2 = 5) Linear equation in one variable: an equation that can be written in the form ?? + ? = 0 ( like 3? + 2 = 5) Solution: a value, that when substituted for the variable of the equation, makes the equation true ( ? = 1 is the one solution of 3? + 2 = 5) Inverse Operations: two operations that undo each other (addition and subtraction are inverse operations to each other, and multiplication and division are inverse operations to each other) Equivalent equations: equations that have the same solution ( 3? + 2 = 5 and 10? − 3 = 7 have the same solution, ? = 1 ) Our first four key tools in solving equations are: 1. Example of using Addition Property of Equality: 2. Example of using Subtraction Property of Equality: 3. Example of using Multiplication Property of Equality:
4. Example of using Division Property of Equality: An Approach to Solving Read-Life (Word) Problems 1. Understand the Problem: What is the unknown? (choose a variable to represent that!). What information is being given? What is being asked? 2. Make a Plan using one of the strategies you have learned over the years in math a.

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• Fall '16
• Addition, Expression, Elementary algebra, c. Analytical Strategies

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