Page 34 - Math Course 2 (Book 1)
P. 34

More Two-Step Equations



        REAL WORLD EXAMPLE
                                                           Your Turn!


          COMMUNITY SERVICE                               Real World Example
          In a canned food drive, Sam collected 12 more    SHOPPING
          cans than Louise. Together, they collected 128   Tami spent $175 at the grocery store. That is $25
          cans. How many cans did Sam collect?
                                                           less than four times as much as Ted spent. How
                                                           much did Ted spend?
          Let x = number of cans collected by Louise.
          Then x + 12 = number of cans collected by Sam.
                                                           A. $8.33
                                                           B. $37.50
            x + (x + 12) = 128  Write the equation.
                                                           C. $50
                                                           D. $600
            (x + x) + 12 = 128  Associative Property.
                   2x + 12 = 128  Combine like terms.


          2x + 12 – 12 = 128 – 12 Subtract 12 from each     Answer
                                side.

                            2x = 116  Simplify.

                             x  = 58  Mentally divide each side
                                by 2.

                          So, Louise collected 58 cans
             Answer        and Sam collected 58 + 12
                                  or 70 cans.





         GARDENING
         During the summer, Kyle picked eight more tomatoes from his
         garden than Matt picked from his garden. Together, they picked
         32 tomatoes. How many tomatoes did Kyle pick?
         A. 24 tomatoes


         B. 21 tomatoes
         C. 20 tomatoes


         D. 12 tomatoes







           Answer
















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