Pouvez vous m'aider juste pour l'equation a) Merci

a) 5 (3 - 2x) = - (4x + 1)
15 - 10x = - 4x - 1
- 10x + 4x = - 1 - 15
- 6x = - 16
x = 16/6
x = 8/3

b) - 2 (3 + x) + 2x = 6 (x + 2)
- 6 - 2x + 2x = 6x + 12
- 2x + 2x - 6x = 12 + 6
- 6x = 18
x = - 18/6
x = - 3