3.5 And 3.6 Solving Equations

Section 3.5: Solving Equations by Adding or Subtracting By Ms. Dewey-Hoffman October 2 nd , 2008 (Thursday)

Using Subtraction to Solve Equations. ,[object Object],[object Object],[object Object],[object Object],[object Object]

Try This, Then Check: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Subtraction Property of Equality ,[object Object],[object Object]

Word Problem with Subtraction Property of Equality ,[object Object],239.9 Thousand Miles 22.3 Thousand Miles ???

Word Problem with Subtraction Property of Equality, Cont. ,[object Object],[object Object],[object Object],[object Object],239.9 Thousand Miles 22.3 Thousand Miles ???

Word Problem with Subtraction Property of Equality, Solve. ,[object Object],[object Object],[object Object],239.9 Thousand Miles 22.3 Thousand Miles 218 Thousand Miles ,[object Object],[object Object],[object Object]

Another Word Problem ,[object Object],[object Object],[object Object],[object Object]

Shoe Store Markup ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Using Addition Property of Equality to Solve Equations. ,[object Object],[object Object],[object Object]

Sample Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Word Problem! ,[object Object],Previous Balance - Check = New Balance Previous Balance $76.85 - = $235.00 + 76.85 + 76.85 Previous Balance = $311.85

Solving Equations by Multiplying or Dividing Decimals Section 3.6 By Ms. Dewey-Hoffman

Using Division to Solve Equations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Word Problem ,[object Object],Barrels Made In A Day X Number of Days = 200 Thousand Barrels 16.8 X Number of Days = 200 Thousand Barrels

Word Problem Barrels Made In A Day X Number of Days = 200 Thousand Barrels 16.8 X Number of Days = 200 Thousand Barrels  16.8  16.8 Number of Days = 11.904, round to 12 Days. It will take 12 days to make 200 barrels of oil.

Using Multiplication to Solve Equations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

When Solving Equations… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Assignment #18 ,[object Object],[object Object]

3.5 And 3.6 Solving Equations

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3.5 And 3.6 Solving Equations