bonsoir
Garnier = x
Morel = x + 180
x + 180 - 41 = 2 ( x + 41 )
x + 139 = 2 x + 82
x - 2 x = 82 - 139
x = - 57
x = 57
M.garnier a 57 € et Morel 237
Si Morel donne 41 € à Garnier
Morel a 57 + 180 - 41 = 196
Garnier a 57 + 41 = 98
2 * 98 = 196
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bonsoir
Garnier = x
Morel = x + 180
x + 180 - 41 = 2 ( x + 41 )
x + 139 = 2 x + 82
x - 2 x = 82 - 139
x = - 57
x = 57
M.garnier a 57 € et Morel 237
Si Morel donne 41 € à Garnier
Morel a 57 + 180 - 41 = 196
Garnier a 57 + 41 = 98
2 * 98 = 196