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Sagot :

Bonjour,

x - 8 = 0

x = 0 + 8

x = 8

y + 3 = 0

y = 0 - 3 = -3

3x = 2x + 9

3x - 2x = 9

x = 9

AYUDA

bjr

x - 8 = 0 => x = 8

y + 3 = 0 => y = -3

et 3x - 2x = 9 => x = 9

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