Sagot :
Réponse :
Bonjour
-3x + 4 = 2x + 1
-5x = -3
5x = 3
x = 3 / 5
2x + 1 = 5 - x
3x = 4
x = 4 / 3
x + 3 = -5x - 9
6x = -12
x = -2
Bonsoir,
résoudre:
x-6x= 3x
x-6x-3x= 0
-8x= 0
x= 0
vérification:
0-6(0)= 3(0)
0= 0
-3x-2x= -1-4
-5x= -5
x= -5/-5
x= 1
vérification:
-3(1)+4= 2(1) -1
1= 1
2x+x= 5-1
3x= 4
x= 4/3
vérification:
2(4/3)+1= 5-4/3
(8+1x3)/3= (5x3-4)/3
11/3= 11/3
x+5x= -9-3
6x= -12
x= -12/6
x= -2
vérification:
-2+3= -5(-2)-9
1= 1