Bonjour,
Résoudre les équations suivantes :
3x = 18
x = 18/3
x = 6
-5x = 48
x = - 48/5
84= 6x
x = 84/6
x = 14
5x+3= 45
5x = 45 - 3
5x = 42
x = 42/5
-10x+68= 145
- 10x = 145 - 68
- 10x = 77
x = - 77/10
13x-45=112
13x = 112 + 45
13x = 157
x = 157/13
Bonjour,
3x = 18
x = 18/3 = 6
-5x = 48
x = -48/5 = -9.6
84 = 6x
x = 84/6 = 14
5x + 3 = 45
5x = 42
x = 42/5 = 8.4
-10x + 68 = 145
-10x = 145 - 68
-10x = 77
x = -77/10 = -7.7
13x - 45 = 112
13x = 112 + 45
13x = 157
x = 157/13
