e)─ 5x + 9 = 2 f) 5x ─ 2 = ─7
Mathématiques
juliettetruant08
Question
e)─ 5x + 9 = 2
f) 5x ─ 2 = ─7
f) 5x ─ 2 = ─7
1 Réponse
-
1. Réponse hectorernoult
Réponse:
e) -5x = 2-9
-5x = -7
x = -7/-5 = 7/5
x = 1,4
f) 5x = -7+2
5x = -5
x = -5/5
x = -1