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Steps to Solving Equations

Steps to Solving Equations. Projector Resources. Things to Ponder. If you substitute your value of x on one side of the equation, does it equal the number on the other side? How can you check whether your value for x is correct? Could you solve the equation using a different method?.

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Steps to Solving Equations

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  1. Steps to Solving Equations Projector Resources

  2. Things to Ponder • If you substitute your value of x on one side of the equation, does it equal the number on the other side? • How can you check whether your value for x is correct? • Could you solve the equation using a different method?

  3. Writing Algebraic Expressions Area of rectangle = _ _ _ _ _ _ _ _ _ _ _ _

  4. Writing Algebraic Expressions Perimeter of rectangle = _ _ _ _ _ _ _ _ _ _ _ _

  5. Writing Algebraic Expressions Which two expressions are equivalent?

  6. Which Equations Describe The Story?

  7. If x is the cost of a notebook, what expression shows the cost of a pencil? • If a pen costs 3 times as much as a pencil, what expression shows the cost of a pen? • What errors do you see in B and C? • Find the cost of a notebook. • Check the solution.

  8. Individual Work Write an equation of each of the stories on your cards. In each case, let x represent the number you are trying to find.

  9. Collaborative Work • The six story cards are the same stories you were just looking at. • With your group, match each story card with an equation card. • Use your individual work to help you. • Do any of your equations match the equations on the cards? • Justify each choice with a thorough explanation. • Check all work carefully!

  10. Collaborative Work Part 2 • Divide your paper into quarters. • You are now going to work with card E1, E2, E3, and E4. • Place one card, along with its matching story, at the top of each section. • Explore the steps for solving each equation. • In between each step, write a direction of the process involved. (ex: divide both side by 2) • Repeat this until to reach a solution. • If you find that there is more than one method for solving an equation, show both methods side-by-side. • Be sure to explain all aspects of your work thouroghly.

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