Réponse :
Explications étape par étape
Bonjour ,
1)
8x-2x = 3+15
6x= 18
x = 18/6 =3
2)
10x+ 4x = -8-2
14x= -10
x = -10/14 = -5/7
3)
2x+10 =x-4
2x-x = -4-10
x = -14
4)
7-5 = -3x +5x
2 = 2x
x= 2/2 = 1
5)
3x-3 +4 = x-1
3x-x = -1+3-4
2x = -2
x= -2/2 = -1
6)
4-3x -1 = 3x +15
4-1 -15 = 3x +3x
-12 = 6x
x= -12/6 =-2
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Réponse :
Explications étape par étape
Bonjour ,
1)
8x-2x = 3+15
6x= 18
x = 18/6 =3
2)
10x+ 4x = -8-2
14x= -10
x = -10/14 = -5/7
3)
2x+10 =x-4
2x-x = -4-10
x = -14
4)
7-5 = -3x +5x
2 = 2x
x= 2/2 = 1
5)
3x-3 +4 = x-1
3x-x = -1+3-4
2x = -2
x= -2/2 = -1
6)
4-3x -1 = 3x +15
4-1 -15 = 3x +3x
-12 = 6x
x= -12/6 =-2