👤

Sagot :

Réponse :

Explications étape par étape

Bjr,

1)

1-3 = 9x-7x

-2 = 2x

-2/2 = x

x= -1

2)

10x -2 = 3 -9x

10x+9x = 3+2

19x = 5

x = 5/19

3)

12x² -4x  +6x -2 = 12x² -6x +6x -3

12x² -12x² -4x +6x +6x -6x = 2-3

6x = -1

x =-1/6

© 2024 IDNLearn. All rights reserved.