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A / 5x+2=8x-3
B / 2(3b+7)=4(-2b+1)
Aider moi svp ​


Répondre :

Bjr,

5x - 8x=  - 3 - 2

- 3x = - 6

x = - 6 / - 3

x = 2

6b + 14 = - 8b + 4

6b + 8b = 4 - 14

14b = - 10

b = -10/14 = -5/7.