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Sagot :

2x - 3 = 1/3 (7x+2)
2x - 3 = 7/3 x + 2/3
je mets les x ensemble 
2x - 7/3 x = 3 + 2/3
je mets au meme denominateur 
6x/3 - 7/3x = 9/3 2/3
-x/3 = 11/3
-x = 11/3 / 1/3
-x = 11/3 x 3/1
-x= 33/3 = 11
x=-11

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