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    4. 2(7+3t)=-t
    2(7+3t)=-t

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    0  Views: 491 Answers: 2 Posted: 14 years ago
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      2 Answers

      2(7+3t)= -t


      t = -2


      1. Multiply.... 2*7 + 2*3t = -t


                              14  +  6t    = -t


      2. Subtract  6t  from both sides.


           Problem now says...14 = -7t


      3. Divide -7t from both sides


           Problem now says...-2 = t


      Check problem by putting -2 in place of  ( t )


      2(7 + 3(-2) ) =  -t  >  14 + -12 =  - -2


                                                 2       =     2  ( Remember double negatives makes a positive )


       

      14 years ago. Rating: 0
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        2(7+3t)=-t


        i.e. 14 + 6t = -t


        i.e. 6t + t = -14


        i.e. 7t = -14


        i.e. t = -14/7


        So, t = -2


        Now solve the remaining problems with your friends.


         

        14 years ago. Rating: 0
        Comment this answer



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