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Multistep Equations. Friday, 9/6 Monday, 9/9 This is for your Table of Contents. Warm-up. 3-5=5-3 Always, Sometimes, or never true? 3-x=x-3 Always, sometimes, or never true? Show all calculations and explain all reasoning. Agenda. Pass Back Notebooks Warm-up
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Multistep Equations Friday, 9/6 Monday, 9/9 This is for your Table of Contents
Warm-up • 3-5=5-3 Always, Sometimes, or never true? • 3-x=x-3 Always, sometimes, or never true? • Show all calculations and explain all reasoning
Agenda • Pass Back Notebooks • Warm-up • Main Idea: We can work backwards to “undo” operations and solve for the unknown variable. • Two Step, Practice • Word Problems • Break • Multistep, Practice • Assignment
Two Step Notes • 1. Draw a line beneath the = sign to show balance • 2. UNDO from the outside (away from the variable) towards the inside (towards the variable) • Examples • Practice
Multistep Notes • 1. Draw a line beneath the = sign to show balance. • 2. EXPAND (distributive property) • 3. Move all variables to one side • 4. Combine Like terms • 5. Solve two-step • Examples • Practice
Assignment • Assignment Log • Questions about previous assignment • New assignment: • Textbook pg. 101, #11-23 odd