Réponse :
Bonsoir à toi
Explications étape par étape :
a) 5x = 3x +3
5x - 3x = 3
2x = 3
x = 3/2
x = 1.5
b) 8x = 12x + 4
8x - 12x = 4
-4x = 4
x = 4/(-4)
x = -1
c) 4 - 7y = 10y
-7y - 10y = -4
-17y = -4
y= -4/(-17)
y= 4/17
d) 7x + 1 = -4 -x
7x + x = -4 -1
8x = -5
x = -5/8
e) 2 + 3x = 7 - 3x
3x + 3x = -2 + 7
6x = 5
x = 5/6
Bonne soirée a toi
