Pouvez vous m’aider avec c’est équations svp j’y arrive vraiment pas 2x + 3 = 7 2y-4-12-6y 1-3t=10 2 (x + 3) = 7 3x + 1 = 7 5 (2-1) +3 (2-x) = 0 (x + 2) (X +1)

Bonjour

Résoudre les équations :

2x + 3 = 7

2x = 7 - 3

2x = 4

x = 4/2

x = 2

2y-4-12-6y  = - 4y - 16

1-3t=10

- 3t = 10 - 1

- 3t = - 9

t = 9/3

t = 3

2 (x + 3) = 7

2x + 6 = 7

2x = 7 - 6

2x = 1

x = 1/2

3x + 1 = 7

3x = 7 - 1

3x = 6

5 (2-1) +3 (2-x) = 0

10 - 5 + 6 - 3x = 0

- 3x = - 10 - 6 + 5

- 3x = - 11

x = 11/3

(x + 2) (X +1) = (x + 4) (x-5)

x² + x + 2x + 1 = x² - 5x + 4x - 20

x² - x² + x + 2x + 5x - 4x = - 20 - 1

4x = - 21

x = - 21/4