Sagot :
Réponse:
a/ on a 8x = -4
donc : x= -4/8
= -1/2 = -0.5
b/ 8x =6
donc : x = 6/8 = 3/4 = 0.75
c/ -5x = 4 donc x = -5/4 = -1.25
a. 8x = -4
8x/8 = -4/8
x = -4/8 = -1/2 = -0,5
b. 8x = 6
8x/8 = 6/8
x = 6/8 = 3/4 = 0,75
c. -5x = 4
-5x/-5 = 4/-5
x = 4/-5 = -0,8