Réponses

2013-03-02T17:42:10+01:00

4(x+5)=10x+3

4x + 20 = 10x + 3

4x - 10 x = 3 - 20

-6x = -17

6x = 17

x = 17/6

 

En espérant t'avoir aidé.

2013-03-02T17:52:55+01:00

1) 4(x+5) = 10x +3

     4x +20 = 10x +3

     4x -10x = -20 +3

      -6x = -17

         x = -17/6 - X - = + 17/6