lorsqu'on retranche un même nombre x au numerateur et au denominateur de la fraction [tex]\frac{5}{3}[/tex] , on obtien la fraction [tex]\frac{3}{5}[/tex] .

a) ecrire une équation qui permet de trouver x.

b) donner la valeur de x. 

Merci! ^^

By: USER4464
27 Agustus 2025 mathematiques 5 minutes
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291 views 291 comments 13 shares
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Question

Grade: Education Subject: mathematiques

lorsqu'on retranche un même nombre x au numerateur et au denominateur de la fraction [tex]\frac{5}{3}[/tex] , on obtien la fraction [tex]\frac{3}{5}[/tex] .

a) ecrire une équation qui permet de trouver x.

b) donner la valeur de x. 

Merci! ^^

Asked by:
291 Viewed 291 Answers

Answer (291)

Best Answer
(143)

a) (5-x)/(3-x)=3/5

b)

 (5-x)/(3-x)=3/5

eq a 5(5-x) = 3(3-x)

eq à 25-5x=9-3x

eq à 16=2x

eq 8= x

Answered on 27 Agustus 2025
(191)

a) 5-x=3 ou 3-x=5

 

 

b)

5-x = 3 ou 3-x = 5

-x = 8        -x = 8

x = -8         x = -8

 

       x = -8

 

Answered on 27 Agustus 2025

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