Equations: (8-2x)/3 = (5x+5)/5 x+(3/4) = 2x-(1/2)
Mathématiques
wendy17
Question
Equations:
(8-2x)/3 = (5x+5)/5
x+(3/4) = 2x-(1/2)
(8-2x)/3 = (5x+5)/5
x+(3/4) = 2x-(1/2)
1 Réponse
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1. Réponse overjay
la 1ere equation est
(8-2x)/ 3 = (5x+5)/5
soit
8-2x = 3.(x+1)
soit
5x = 8-3 = 5
Soit x = 1
la 2eme équation
x+(3/4) = 2x - 1/2
soit
4x + 3 = 8x - 2
soit
4x = 5
soit
x = 5/4 = 1.25