Bonsoir,
-8x+6=5.
-8x = 5-6
-8x = -1
x= 8
5x-3=8x+2.
-3-2 = 8x -5x
-5 = 3x
x= -5/3
x/5. ??
-3/4x=5x+1/2.
-1/2 = 5x +3x/4
-1/2 = 20x/4 +3x/4
-1/2 = 23x/4
-1/2 *4 = 23x
-4/2 = 23x
- 2 = 23x
x = -2/23
1/3 Vérifie t-il l’équation 13x-6=7x-8?
13x-7x = -8+6
6x = -2
x= -2/6
x= - 1/3
donc, non
