close
    1. Home
      2. ›
    2. Science & Mathematics
      3. ›
    3. Mathematics
      4. ›
    4. 7(x+4)=9(x-2)
    7(x+4)=9(x-2)

    please help me

    Answer this
    0  Views: 545 Answers: 1 Posted: 13 years ago
    Comment this question

      1 Answer

      7(x+4)=9(x-2)


      Multiply:  7(x + 4)     9(x - 2)


      7x + 28  =  9x - 18


       7x  +  28  =  9x  -  18


      -9x     -28     -9x     -28      


      -2x              =         -46  


      -2                            -2


      Answer:  x = 23


      Check answer:  Put (23) in place of (x) in the problem.


      7(23 + 4)  =  9(23 - 2)


       161 + 28  =  207 - 18


             189      =       189 


       

      13 years ago. Rating: 0
      Comment this answer



        Did this answer your question? If not, then ask a new question.

        Top contributors in Mathematics category

         
        ROMOS
        Answers: 313 / Questions: 0
        Karma: 13510
         
        Colleen
        Answers: 367 / Questions: 0
        Karma: 6890
         
        country bumpkin
        Answers: 96 / Questions: 0
        Karma: 6240
         
        Bob/PKB
        Answers: 220 / Questions: 2
        Karma: 5030
        > Top contributors chart

        Unanswered Questions

        MOCHA VIỆT NAM
        Answers: 0 Views: 7 Rating: 0
        789win
        Answers: 0 Views: 13 Rating: 0
        Jalwa Game
        Answers: 0 Views: 14 Rating: 0
        sc88vietnam
        Answers: 0 Views: 14 Rating: 0
        mmoojpncom2
        Answers: 0 Views: 12 Rating: 0
        Italio VN
        Answers: 0 Views: 13 Rating: 0
        B52Club5618
        Answers: 0 Views: 14 Rating: 0
        mmoosh2
        Answers: 0 Views: 14 Rating: 0
        > More questions...
        525334
        questions
        758381
        answers
        872024
        users