Réponse :
bonjour
t + 5 = 12
t = 12 - 5
t = 7
t - 4 = 20
t = 24
14 + t = 10
t = 10 - 14
t = - 4
40 - t = 8
- t = 8 - 40
- t = - 32
t = 32
4 t = 24
t = 6
t /2 = 8
t = 16
3 t = 2
t = 2/3
2/3 + t = 10/3
2/3 + 3 t /3 = 10/3
3 t = 10 - 2
3 t = 8
t = 8 /3
t - 3/4 = 5 /4
4 t /4 = 5 /4 + 3 /4
4 t = 8
t = 2
x + 10 = - 3
x = - 13
12 = 3 + x
- x = 3 - 12
- x = - 9
x = 9
- x + 5 = 15
- x = 10
x = - 10
5 x = 24
x = 24/5
- 2 x = 12
x = - 6
x /5 = 4
x = 20
Explications étape par étape :
