besoin d'aide !!!! svp
Mathématiques
youyou03
Question
besoin d'aide !!!! svp
1 Réponse
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1. Réponse ouesletiahmed
a) -5s + 48 = 3s + 16
-8s = - 32
s = 32/16 = 4
b) 3 - 5x = 10 - 12x
7x = 7
x = 1
c) -3x + 7 = 3x - 11
-6x = - 18
x = 3
d) 2(x-5) = 5x + 35
2x - 10 = 5x + 35
-3x = 45
x = - 15