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Sagot :

AZAXTRA

a) 2x+5 = 15-3x

          5x = 10

            x = 2

 

b) -6x+4 = -1-x

          -5x = -5

             x = 5

 

c) 7m+10 = m-8

            6m = -18

              m = -3

 

d) -12y = 4-13y

           y = 4
C'est ca! AzaXtra a raison

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