2.2 Solving Two-Step Equations I can solve two-step equations in one variable.

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Presentation transcript:

2.2 Solving Two-Step Equations I can solve two-step equations in one variable.

What is a two-step equation? Requires 2 steps to solve. ◦Involves 2 operations Uses properties of equality and inverse operations to solve. ◦Isolate the variable. Ex:

How to Solve Identify operations Use inverse operations to “undo” them Undo operations in reverse order Ex: 2x+3 = 15 ◦Multiplication and addition Undo ◦Subtract 3: 2x = 12 ◦Divide by 2: x = 6 Solution: x = 6

Solving with 2 Terms in the Numerator

Practice

Using an Equation as a Model

Assignment ODDS ONLY P.91 #11-33, 39-45, 51