👤

Bonjour est ce que l'on pourait m'aidez a ces équations sil vous plait ? Merci.
1. 11/5 x+2=0 2. 11= 5 + 3/2x 3. 3x/2 + x/3- 1=1/3 4. 3/2x +1 =x/4 -1
5. 5 (x-2) +2 (1-3x) = 7x +12 6. 4 (x-1)-3 (2-x) =2
Merci d'avance.


Répondre :

bjr

11/5 x+2=0

11/5x = -2

x = -2 * 5/11

x = -10/11

2. 11= 5 + 3/2x

3/2x = 6

x = 6*2/3

x = 12/3 = 4

3. 3x/2 + x/3- 1=1/3

3/2x + 1/3x - 1 = 1/3

9/6x + 1/6x = 1/3 + 1

10/6x = 4/3

x = 4/3 * 6/10

x = 2*2*3*2 / 3*2*5 = 4/5

4. 3/2x +1 =x/4 -1

3/2x - 1/4x = - 2

6/4x - 1/4x = -2

5/4x = -2

x = -2*5/4

tu finis

5. 5 (x-2) +2 (1-3x) = 7x +12

5x - 10 + 2 - 6x = 7x + 12

5x - 6x - 7x = 12 + 8

tu finis

6. 4 (x-1)-3 (2-x) =2

4x - 4 - 6 + 3x = 2

7x = 2 + 10

tu finis