Bonsoir , pouvez-vous m’aider s’il vous plaît pour cette exercice de maths, merci d’avance.
Résoudre ces équations :
a. 4x = 3/5
b. 2/3 x = 7
c. 6/5 x = -7/11
d. -7x = 4/-3
e. -3/2 x = 5
f. -5/7 x = -2/-3
Merci .
Résoudre ces équations :
a. 4x = 3/5
b. 2/3 x = 7
c. 6/5 x = -7/11
d. -7x = 4/-3
e. -3/2 x = 5
f. -5/7 x = -2/-3
Merci .
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Verified answer
a. 4x =3/54x/4 = (3/5)/4
x = 0,15
b. 2/3x =7
(2/3x)/2/3 = 7/(2/3)
x = 10,5
c. 6/5x = -7/11
(6/5x)/6/5 = (-7/11)/6/5
x = -35/66
Pour la suite j’espère que tu as compris la démarche je te laisse continuer seul ;)
Bonsoir,
4x = 3/5 ⇒ x = (3/5)/4 = 3/20
2/3 x = 7 ⇒ x = 7/(2/3) = 7(3/2) = 21/2
6/5 x = -7/11 ⇒ x (-7/11)/(6/5) = (-7/11)×(5/6) = -35/66
-7x = -4/3 ⇒ x = (4/3)/7 = 4/21
-3/2 x = 5 ⇒ x = 5/(-3/2) = 5 × (-2/3) = -10/3
-5/7 x = -2/3 ⇒ x = (2/3)/(5/7) = 2/3 × 7/5 = 14/15