Solving Equations Unit 1 Lesson 2 Write in

Solving Equations Unit 1 Lesson 2

Write in key points column. Math Verb - Solve � To find the unknown value. � Answer variable equals… (e. g. x = …) � STRATEGIES for SOLVING: 1. 2. 3. Guess and check. Use inverse operations. MORE to come later in the year! R When solving, your goal is to isolate the variable. Write in notes section.

Write in key points column. R Example #1 GEMDAS Write in notes column. Solve: 2 x + 14 + 4 x = 26 Distribute 6 x + 14 = 26 Simplify – combine like terms 6 x = 12 x = 2 SADMEG Subtract Divide REMINDERS • Simplifying one side: Regular order of operations (GEMDAS) on one side. • Using inverse operations: Reverse order of operations (SADMEG) to both sides. Inverse Operations Addition Subtraction Multiplicatio n Division Melting Freezing

� Why do you have to do the same operation to both sides when you solve, but not when you simplify? Simplify: Solve:

Write in key points column. Defend your answer � Substitute value and Write in notes column. simplify. � Look for a true statement. � Defend your answer using the checked answer.

Example #3 - Partners � Solve the formula below for h. Do Do’s and Don’ts of Solving Equations Don’t Make the equation simpler. Use inverse operations on BOTH sides. Make the equation more complex. Use inverse operations on only one side. Clear grouping symbols before separating parts of a group Separate parts of a group before clearing grouping symbols.

Independent Practice - Answers �

Independent Practice - Answers �

Backup

Example #2 SADMEG Subtract 3 x =24 x = 8 Multiply Divide