Bonjour, j'ai besoin d'aide en maths.

Résoudre les équations :

1) 5(2x - 3) - (-5x + 7) = -3(-x - 5)
2) (3x + 5) - (-2x - 3) = 0
3) (3x - 4)(x + 7) = 9x² - 16

Merci d'avance​
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