Complete a) 6x =1 b)-3x =1 c) x13=1 d)2/3x =1 e) x-5/7=1 f)2/-9x =1
Mathématiques
rainman
Question
Complete
a) 6x =1
b)-3x =1
c) x13=1
d)2/3x =1
e) x-5/7=1
f)2/-9x =1
a) 6x =1
b)-3x =1
c) x13=1
d)2/3x =1
e) x-5/7=1
f)2/-9x =1
2 Réponse
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1. Réponse nonotata
a) 6x =1x= 1/6
b)-3x =1x= -1/3
c) x13=1x = 1/13
d)2/3x =1x = 1*3/2
x =3/2
e) x-5/7=1x= 1+5/7
x= 7/7+5/7
x = 12/7
f)2/-9x =1x = 1 *-9/2
x= -9/2
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2. Réponse maudmarine
a) 6x =1
x = 1/6
b)-3x =1
x = - 1/3
c) x/13=1
x = 1/13
d)2/3x =1
x = 1 * 3/2
x = 3/2
e) x-5/7=1
x = 1 + 5/7
x = 1 * 7 / 1 * 7 + 5/7
x = 7/7 + 5/7
x = 12/7
f)2/-9x =1
x = 1 * - 9/2
x = - 9/2