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  • Utilisateur Brainly
2014-09-08T19:03:47+02:00
5(2x + 1) - 3x + 4 =  6
10x + 5 - 3x + 4 = 6
7x + 9 = 6
7x = 6 - 9
7x = - 3
x = - 3/7