Bonjour pourriez vous m aidez svp résoudre algébriquement chaque equation a.6+t- 11+4t = 2t - 5+7t -3 b.2x-3-5x+4 = 1 - 6x merci d avance

Bonjour,

♣️a) 6 + t - 11 + 4t = 2t - 5 + 7t - 3

5t - 5 = 9t - 8

-5 + 8 = 9t - 5t

3 = 4t

3/4 = t

b) 2x - 3 - 5x + 4 = 1 - 6x

-3x + 1 = 1 - 6x

-3x + 6x = 1 - 1

3x = 0

x = 0

Réponse :

Bonjour,

a) 6+t-11+4t = 2t-5+7t-3

5t-5 = 9t-8

5t-9t-5+5 = 9t-9t-8+5

-4t = -3

t = -3/(-4)

t = 3/4

t = 0,75

b) 2x-3-5x+4 = 1-6x

   -3x+1 = 1-6x

   -3x+6x+1-1 = 1-1-6x+6x

   3x = 0

   x = 0/3

   x = 0