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Coline62000
@Coline62000
April 2019
2
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Un père a 25ans de plus que son fils. Dans 5ans om aura le double de l'âge de son fils. Ecrire ce problème sous la forme d'une équation puis la résoudre.
Merci....
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matthieuklein73
25+5=x/2
30=30/2
=15
il aura donc 15 ans
1 votes
Thanks 1
Coline62000
Merci beaucoup !
Coline62000
Mais il ne faut pas faire genre "f(x)"?
Salut59
VOUS POUVEZ MAIDER SVP A MON DEVOIR
sbounhas2
On nomme le fils x
x + 25 +5= 2x
x +30 = 2x
x + 2×15 = 2x
x + 15 = x
= 15
0 votes
Thanks 0
Coline62000
il faut pas faire genre "f(x)"?
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Lista de comentários
30=30/2
=15
il aura donc 15 ans
x + 25 +5= 2x
x +30 = 2x
x + 2×15 = 2x
x + 15 = x
= 15