Développer 2 (x-1)-3x+7

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Grade: Education Subject: mathematiques
Développer 2 (x-1)-3x+7
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(50)

[tex]2x - 2 - 3x + 7 = - x + 5[/tex]
(49)
2(x - 1) - 3 x + 7 = 2 x - 2 - 3 x + 7 = - x + 5