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4x-5(x-2)=12x+4-x
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Sagot :

     4x - 5(x - 2) = 12x + 4 - x
4x - 5(x) - 5(-2) = 12 - x + 4
    4x - 5x + 10 = 11x + 4
            -x + 10 = 11x + 4
          + x             + x      
                    10 = 12x + 4
                    - 4            - 4
                      6 = 12x
                     12    12
                   0.5 = x