Bonjour, pouvez vous m'aider ? Résoudre les équations suivantes :

a) 4(2 - x) + 5 = -3(2x + 3) - 12

b) 3x + 1 ÷ 4 = 5x - 2 ÷ 5

c) x/3 + 5/6 = 1/2 - x

d) x - (x + 1) = (x + 3) - (x - 3)

Merci d'avance​
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