4x + 2/3x + 20=7x-10
Mathématiques
gravedimitri1
Question
4x + 2/3x + 20=7x-10
1 Réponse
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1. Réponse Anonyme
4x + 2/3x + 20 = 7x - 10
4x + 2/3x - 7x = - 10 - 20
- 3x + 2/3x = - 30
- 9/3x + 2/3x = - 30
- 7/3x = - 30
- 7x = - 30 x 3
- 7x = - 90
x = 90/7