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Oceanelrt2710
@Oceanelrt2710
May 2019
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Bonjour , pourriez-vous m'aider à résoudre cette équation . Merci d'avance
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anylor
Bonjour
(2/3)x -3x -4 = x/5 +1/2
on sépare les termes en x et les nombres
(2/3)x -3x -(1/5)x = 4+1/2
on met au m^me dénominateur
[(2×5)/( 3×5) ] x - [3×15 /15 ] x -[1×3/15 ] x = 8/2 +1/2 = 9/2
(10 /15) x - (45/15) x - (3/15) x = 9/2
(- 38/15) x = 9/2
x = - 9×15 / 38×2
x = - 135/76
vérifie que ton énoncé soit bien entier
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On donne A=-2/7x+3/4 calculer l'expression A .
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(2/3)x -3x -4 = x/5 +1/2
on sépare les termes en x et les nombres
(2/3)x -3x -(1/5)x = 4+1/2
on met au m^me dénominateur
[(2×5)/( 3×5) ] x - [3×15 /15 ] x -[1×3/15 ] x = 8/2 +1/2 = 9/2
(10 /15) x - (45/15) x - (3/15) x = 9/2
(- 38/15) x = 9/2
x = - 9×15 / 38×2
x = - 135/76
vérifie que ton énoncé soit bien entier