12x-1=2(5x-2)+1
Bjr besoin d'aide svp


Sagot :

Bonjour

12x-1=2(5x-2)+1

12x - 1 = 10x - 4 + 1

12x - 10x = - 4 + 1 + 1

2x = - 2

x = - 2/2

x = - 1.