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sarahbzn8
@sarahbzn8
January 2021
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Bonsoir, pouvez m'aidez à cette exercice de math svp :
Réduire les expressions suivantes :
2x-5x+7x
5y-7-3y+4
3a+2b-a-6b
9-3x2 aucarre+2x+8x2aucarre+5-8x
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loulakar
Verified answer
Bonjour,
Réduire les expressions suivantes :
2x-5x+7x = 2x + 7x - 5x = 9x - 5x =
4x
5y-7-3y+4 = 5y - 3y - 7 + 4 =
2y - 3
3a+2b-a-6b = 3a - a + 2b - 6b =
2a - 4b
9-3x² +2x+8x² +5-8x = 8x² - 3x² + 2x - 8x + 9 + 5 =
5x² - 6x + 14
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Lista de comentários
Verified answer
Bonjour,Réduire les expressions suivantes :
2x-5x+7x = 2x + 7x - 5x = 9x - 5x = 4x
5y-7-3y+4 = 5y - 3y - 7 + 4 = 2y - 3
3a+2b-a-6b = 3a - a + 2b - 6b = 2a - 4b
9-3x² +2x+8x² +5-8x = 8x² - 3x² + 2x - 8x + 9 + 5 = 5x² - 6x + 14