Réponse :
bonjour
3 x - 4 = 20
3 x = 24
x = 8
8 = H
- 2 x + 7 = - 3
- 2 x = - 10
x = 5
5 = E
4 - 5x = - 1
- 5 x = - 5
x = 1
1 = A
x - 22 = 18 - x
x + x = 18 + 22
2 x = 40
x = 20
20 = T
2 x - 5 = x + 14
2 x - x = 14 + 5
x = 19
19 = S
3 x - 15 - 21 = 0
3 x = 21 + 15
3 x = 36
x = 12
12 = L
HEATSL = THALES
Explications étape par étape :