Réponses

2014-06-18T13:00:15+02:00
Résous les équations suivantes :

a)
4x = 64
x = 64/4
x = 16

b)
8x = - 32
x = - 32/8
x = - 4

c)
15 = - 5x
- 5x = 15
x = - 15/5
x = - 3

d)
- 7x = - 7
x = 7/7
x = 1
2014-06-18T13:04:36+02:00
A) 4x=64
4x/4= 64/4
x= 16

b) 8x= -32
8x/8= -32/8
x= -4

c) 15= -5x
15/-5 = -5x/-5
x= -3

d) -7x= -7
-7x/-7= -7/-7
x= 1