Réponses

2013-10-01T19:35:27+02:00
2(x-3)+5x-4=0
2*x+2*(-3)+5x-4=0
2x-6+5x-4=0
7x-10=0
7x=10
7x/7=10/7
x=10/7

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Meilleure réponse !
2013-10-01T19:45:45+02:00
2(x-3)+5x-4=0
2 * x + 2 * (-3) + 5x - 4 = 0
2x - 6 + 5x - 4 = 0
7x - 10 = 0
7x = 0 + 10
7x = 10
x = 10/7