bonjour
3 x - 5 = x + 1
3 x - x = 1 + 5
2 x = 6
x = 3
2 x + 6 = 5 x - 2 x + 1
2 x + 2 x - 5 x = 1 - 6
- x = - 5
x = 5
5 x + 3 + 3 x + 7 + 4 x + 5 + 10 x - 7 = 52
22 x = 52 - 3 - 7 - 5 + 7
22 x = 44
x = 2
5 x + 3 = 13
4 x + 5 = 13
3 x + 7 = 13
10 x- 7 = 13
c'est un carré
motos = m
41 voitures * 4 = 164
164 roues
290 - 164 = 126
126/2 = 63
41 voitures et 63 motos
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bonjour
3 x - 5 = x + 1
3 x - x = 1 + 5
2 x = 6
x = 3
2 x + 6 = 5 x - 2 x + 1
2 x + 2 x - 5 x = 1 - 6
- x = - 5
x = 5
5 x + 3 + 3 x + 7 + 4 x + 5 + 10 x - 7 = 52
22 x = 52 - 3 - 7 - 5 + 7
22 x = 44
x = 2
5 x + 3 = 13
4 x + 5 = 13
3 x + 7 = 13
10 x- 7 = 13
c'est un carré
motos = m
41 voitures * 4 = 164
164 roues
290 - 164 = 126
126/2 = 63
41 voitures et 63 motos