Réponses

2013-02-06T18:29:10+01:00

2x-3(2-2x)=8(1-x)+2

x =1

 

(2x+6)-(4x+5)=0

x = 1/2

 

(2x+6)(4x+5)=0

x = -3 ou x = -5/4

 

(5x-8)²=0

x = 8/5