5 (3-2x) = - (4x+1) -2(3+x) + 2x = 6(x+2)
Mathématiques
oki4
Question
5 (3-2x) = - (4x+1)
-2(3+x) + 2x = 6(x+2)
-2(3+x) + 2x = 6(x+2)
2 Réponse
-
1. Réponse Anonyme
5(3 - 2x) = - (4x + 1)
15 - 10x = - 4x - 1
15 + 1 = - 4x + 10x
16 = 6x
16/6 = x
8/3 = x
- 2(3 + x) + 2x = 6(x + 2)
- 6 - 2x + 2x = 6x + 12
- 6 = 6x + 12
- 6 - 12 = 6x
- 18 = 6x
- 18/6 = x
- 3 = x -
2. Réponse aminerbt
5 (3-2x) = - (4x+1)
15 - 10x = - 4x - 1
-10x + 4x = - 1 -15
-6x = -16
x = 16/6
x = 8/3
-2(3+x) + 2x = 6(x+2)
-6 - 2x + 2x = 6x +12
- 6x = 6 +12
- 6x = 18
x = -18/6
x = - 3