3(2x-7) = -2(5x+4)-10 5(3-6x) + 20x = 7 (2-4x)
Mathématiques
oki4
Question
3(2x-7) = -2(5x+4)-10
5(3-6x) + 20x = 7 (2-4x)
5(3-6x) + 20x = 7 (2-4x)
1 Réponse
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1. Réponse Anonyme
3(2x-7)=-2(5x+4)-10
6x-21=-10x-18
16x=3
x=3/16
5(3-6x) + 20x = 7 (2-4x)
-10x+15=14-28x
18x=-1
x=-1/18