AIM: Solving One-Step Equations
involving Fractions
                       Do Now

 Write and solve an equation for the
 following.

   When you multiply a number s by 9 and add 8, the
   result is the same as the product of the number s
   and 7.




                                                       1
I need install molding in my living room. I
need a total length of 9/10 ft. I already
have a 2/5 ft piece installed. Write and
solve an equation to find the length of the
other piece.




                x




                                              2
Anticipatory Set

How would you solve the following equation?

                    2             9
                 x+          =
                    5            10




                                              3
1  
                     ALGEBRA
                   The Search for Unknowns
  Objective:        Isolate the variable to find its value


                         RULES
                1.) Keep the equation balanced
         2.) Simplify each side by combining like terms and
                   using the distributive property.
      3.) Move variable to one side using inverse operations.
                    4.) Use inverse operations



                          1         11
                    x+          =
                          3         12




                                                                4
CHECK

   1     11
x+     =
   3     12




              5
2    
                       ALGEBRA
                     The Search for Unknowns
    Objective:        Isolate the variable to find its value


                           RULES
                  1.) Keep the equation balanced
           2.) Simplify each side by combining like terms and
                     using the distributive property.
        3.) Move variable to one side using inverse operations.
                     4.) Use inverse operations



                            9     = x-       1
                           17                2




                                                                  6
CHECK

 9   = x-   1
17          2




                7
3    
                       ALGEBRA
                     The Search for Unknowns
    Objective:        Isolate the variable to find its value


                           RULES
                  1.) Keep the equation balanced
           2.) Simplify each side by combining like terms and
                     using the distributive property.
        3.) Move variable to one side using inverse operations.
                      4.) Use inverse operations



                            3         -5
                     x-          =
                            8          7




                                                                  8
4    
                        ALGEBRA
                     The Search for Unknowns
    Objective:        Isolate the variable to find its value


                            RULES
                  1.) Keep the equation balanced
           2.) Simplify each side by combining like terms and
                     using the distributive property.
        3.) Move variable to one side using inverse operations.
                      4.) Use inverse operations



                            3             1
                   x-   1        =   4
                            4            2




                                                                  9
5    
                       ALGEBRA
                     The Search for Unknowns
    Objective:        Isolate the variable to find its value


                           RULES
                  1.) Keep the equation balanced
           2.) Simplify each side by combining like terms and
                     using the distributive property.
        3.) Move variable to one side using inverse operations.
                      4.) Use inverse operations




                   x+1 1          =
                                       7
                       2              8




                                                                  10
6    
                       ALGEBRA
                     The Search for Unknowns
    Objective:        Isolate the variable to find its value


                           RULES
                  1.) Keep the equation balanced
           2.) Simplify each side by combining like terms and
                     using the distributive property.
        3.) Move variable to one side using inverse operations.
                      4.) Use inverse operations



                            3         -9
                      x+         =
                            4         10




                                                                  11
Before You Leave
a.) Find and correct the error in my work:



               5            2
            x+   =
               7            5




                                             12
Homework




Castle Homework #10 due
tomorrow




                          13
AIM: Solving One-Step Equations
involving Fractions


                   2               9
                x-         =
                   5              10




                                       14
3       -5
x-       =
     8        7




                  15
3            1
x-   1       =   4
         4           2




                          16

D ay 1 add subt

  • 1.
    AIM: Solving One-StepEquations involving Fractions Do Now Write and solve an equation for the following. When you multiply a number s by 9 and add 8, the result is the same as the product of the number s and 7. 1
  • 2.
    I need installmolding in my living room. I need a total length of 9/10 ft. I already have a 2/5 ft piece installed. Write and solve an equation to find the length of the other piece. x 2
  • 3.
    Anticipatory Set How wouldyou solve the following equation? 2 9 x+ = 5 10 3
  • 4.
    1   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 1 11 x+ = 3 12 4
  • 5.
    CHECK 1 11 x+ = 3 12 5
  • 6.
    2   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 9 = x- 1 17 2 6
  • 7.
    CHECK 9 = x- 1 17 2 7
  • 8.
    3   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 3 -5 x- = 8 7 8
  • 9.
    4   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 3 1 x- 1 = 4 4 2 9
  • 10.
    5   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations x+1 1 = 7 2 8 10
  • 11.
    6   ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 3 -9 x+ = 4 10 11
  • 12.
    Before You Leave a.)Find and correct the error in my work: 5 2 x+ = 7 5 12
  • 13.
  • 14.
    AIM: Solving One-StepEquations involving Fractions 2 9 x- = 5 10 14
  • 15.
    3 -5 x- = 8 7 15
  • 16.
    3 1 x- 1 = 4 4 2 16