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Latitelolodu63
@Latitelolodu63
April 2019
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Résoudre les équations suivantes
1. 2x + 3 = 5
2. -x +9 = 6x - 1
3. 2\/7 - \/7x = \/28
4. 4x + 3 sur 3x - 5 = 2
5. 7x + 21 = 49
6. 14- 7x = 4x + 48
Je vous remercie d'avance pour ceux qui m'aideront à résoudre ces équations. Bonne journée.
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Bonjour,
2x + 3 = 5
2x = 5 - 3
2x = 2
x = 1
- x + 9 = 6x - 1
- x - 6x = - 1 - 9
- 7x = - 10
x = (- 10)/(- 7)
x = 10/7
2√7 - √7x = √28
- √7x = √28 - 2√7
(- √7x)² = (√28)² - (2√7)²
7x = 28 - 28
7x = 0
x = 0
(4x + 3)/(3x - 5) = 2
4x + 3 = 2(3x - 5)
4x + 3 = 6x - 10
4x - 6x = - 10 - 3
- 2x = - 13
x = (- 13)/(- 2)
x = 13/2
14 - 7x = 4x + 48
- 7x - 4x = 48 - 14
- 11x = 34
x = 34/(- 11)
x = - 34/11
Bonne journée! =)
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2x + 3 = 5
2x = 5 - 3
2x = 2
x = 1
- x + 9 = 6x - 1
- x - 6x = - 1 - 9
- 7x = - 10
x = (- 10)/(- 7)
x = 10/7
2√7 - √7x = √28
- √7x = √28 - 2√7
(- √7x)² = (√28)² - (2√7)²
7x = 28 - 28
7x = 0
x = 0
(4x + 3)/(3x - 5) = 2
4x + 3 = 2(3x - 5)
4x + 3 = 6x - 10
4x - 6x = - 10 - 3
- 2x = - 13
x = (- 13)/(- 2)
x = 13/2
14 - 7x = 4x + 48
- 7x - 4x = 48 - 14
- 11x = 34
x = 34/(- 11)
x = - 34/11
Bonne journée! =)