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AIM: Solve Multi-Step Equations
using the Distributive Property

                       Do Now

1.) Solve the following equation.
       -8x - 7 + 11 - 3x = -2




2.) Re-write the following expressions using
the distributive property.

    a.) 3(x + 4)                  b.) -2(x - 5)




                                                  1
Anticipatory Set
Find, correct, and explain the mistake made in the following
example.

            -2(x + 6) = -30




Explanation of Mistake:




                                                               2
1  
                  ALGEBRA
                The Search for Unknowns
  Objective:     Isolate the variable to find its value


                       RULES
             1.) Keep the equation balanced
      2.) Simplify by combining like terms and using the
                     distributive property.
                 3.) Use inverse operations




         6(2n - 5) = -90




                                                           3
2  
                  ALGEBRA
                The Search for Unknowns
  Objective:     Isolate the variable to find its value


                       RULES
             1.) Keep the equation balanced
      2.) Simplify by combining like terms and using the
                     distributive property.
                 3.) Use inverse operations




                      36 = 3(x - 2)




                                                           4
3    
                    ALGEBRA
                  The Search for Unknowns
    Objective:     Isolate the variable to find its value


                         RULES
               1.) Keep the equation balanced
        2.) Simplify by combining like terms and using the
                       distributive property.
                   3.) Use inverse operations




         -3(2y + 7) = -39




                                                             5
4  
                  ALGEBRA
                The Search for Unknowns
  Objective:     Isolate the variable to find its value


                       RULES
             1.) Keep the equation balanced
      2.) Simplify by combining like terms and using the
                     distributive property.
                 3.) Use inverse operations




        -5(x - 3) = -10




                                                           6
5  
                  ALGEBRA
                The Search for Unknowns
  Objective:     Isolate the variable to find its value


                       RULES
             1.) Keep the equation balanced
      2.) Simplify by combining like terms and using the
                     distributive property.
                 3.) Use inverse operations




                   -36 = -3(x + 2)




                                                           7
6    
                    ALGEBRA
                  The Search for Unknowns
    Objective:     Isolate the variable to find its value


                         RULES
               1.) Keep the equation balanced
        2.) Simplify by combining like terms and using the
                       distributive property.
                   3.) Use inverse operations




         -3(x - 4) = 2




                                                             8
BEFORE YOU LEAVE
OBJECTIVE:            How do we
solve equations involving parenthesis?   How would you explain today's
                                         lesson to a student who was
                                         absent today?




                                                                         9
Mr. Tjersland's Math 7




Homework: Homework Sheet




                                 10
AIM: Solving Multi-Step Equations
using Distributive Property




              6(2n - 5) = -90




                                    11
CHECK
6(2n - 5) = -90




                  12
-10 = -5(x - 3)




                  13
Attachments



     numbers.pps

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Day 9 distributive property equations day 2

  • 1. AIM: Solve Multi-Step Equations using the Distributive Property Do Now 1.) Solve the following equation. -8x - 7 + 11 - 3x = -2 2.) Re-write the following expressions using the distributive property. a.) 3(x + 4) b.) -2(x - 5) 1
  • 2. Anticipatory Set Find, correct, and explain the mistake made in the following example. -2(x + 6) = -30 Explanation of Mistake: 2
  • 3. 1   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify by combining like terms and using the distributive property. 3.) Use inverse operations 6(2n - 5) = -90 3
  • 4. 2   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify by combining like terms and using the distributive property. 3.) Use inverse operations 36 = 3(x - 2) 4
  • 5. 3   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify by combining like terms and using the distributive property. 3.) Use inverse operations -3(2y + 7) = -39 5
  • 6. 4   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify by combining like terms and using the distributive property. 3.) Use inverse operations -5(x - 3) = -10 6
  • 7. 5   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify by combining like terms and using the distributive property. 3.) Use inverse operations -36 = -3(x + 2) 7
  • 8. 6   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify by combining like terms and using the distributive property. 3.) Use inverse operations -3(x - 4) = 2 8
  • 9. BEFORE YOU LEAVE OBJECTIVE: How do we solve equations involving parenthesis? How would you explain today's lesson to a student who was absent today? 9
  • 10. Mr. Tjersland's Math 7 Homework: Homework Sheet 10
  • 11. AIM: Solving Multi-Step Equations using Distributive Property 6(2n - 5) = -90 11
  • 12. CHECK 6(2n - 5) = -90 12
  • 13. -10 = -5(x - 3) 13
  • 14. Attachments numbers.pps