Pouvez vous m'aidez pour ces 4 équations ! Urgent.... Pergunta de ideia deMissKissKiss02

MissKissKiss02 @MissKissKiss02

January 2021 1 45 Report

Pouvez vous m'aidez pour ces 4 équations ! Urgent

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nini999

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Bonjour!
a) 7x + 17 = 9x+ 29
7x -9x + 17 = 9x+ 29 -9x = 29
- 2x +17 - 17 = 29 - 17
- 2x = 12
- 2x / (-2) = 12 / (-2) donc x = - 6

b) 4x + 15 = 7x + 24 de même, je saute quelques étapes :
4x - 7x = 24 - 15
- 3x = 9 donc 3x = -9 donc x = - 3

c) 8x + 26 = 5x + 14 → 8x - 5x = 14 - 26 → 3x = - 12 → x = - 4

d) 23x + 31 = 16x + 17 → 7x = - 14 → x = -2

1 votes Thanks 1

MissKissKiss02 Merci beacoup

nini999 Pas de problème :) bisous :)

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