merci de resoudre l equation suivante 5 (×-3)-2 (×+4)=(×-3)+4 (×-1)

Question

Mathématiques Publié : 2015-05-30 Mis à jour : 2024-01-18 thierryetcorine

Question

merci de resoudre l equation suivante
5 (×-3)-2 (×+4)=(×-3)+4 (×-1)

Answer 1

5(x - 3) - 2(x + 4) = (x - 3) + 4(x - 1)
5x - 15 - 2x - 8 = x - 3 + 4x - 4
3x - 23 = 5x - 7
- 23 + 7 = 5x - 3x
- 16 = 2x
- 16/2 = x
- 8 = x

Answer 2

5 (x-3)-2 (x+4)=(x-3)+4 (x-1)
5x-15 -2x -8 = x-3+4x-4
3x-23 = 5x-7
5x-3x = -23+7
2x = -16
x = -16 / 2
x = -8