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TayzEden
@TayzEden
May 2019
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Bonjour je suis en 3ème et j'ai besoin d'aide pour un exercice en maths, voici l'exercice :
Résous les équations suivantes:
a) x + 7 = 8
b) t - 9 = 3
c) y + 15 = 7
d) 4z - 7
e) -z = -8
f) 7x = 4
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nguyenso9
Verified answer
Bonjour,
a)
x + 7 = 8
x = 8 - 7
x = 1
b)
t - 9 = 3
t = 3 + 9
t = 12
c)
y + 15 = 7
y = 7 - 15
y = -8
d)
4z = 7
z = 7/4
e)
-z = -8
z = 8
f)
7x = 4
x = 4/7
Bonne soiree
2 votes
Thanks 1
mazig
Verified answer
Bonsoir
a) x+7 = 8
x = 1
b) t-9 = 3
t = 3+9
t = 12
c) y + 15 = 7
y = 7-15
y = -8
d) 4z= -7
z = -7/4
e) -z = - 8
z = 8
f) 7 x = 4
x = 4/7
Bon courage.
1 votes
Thanks 1
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Lista de comentários
Verified answer
Bonjour,a)
x + 7 = 8
x = 8 - 7
x = 1
b)
t - 9 = 3
t = 3 + 9
t = 12
c)
y + 15 = 7
y = 7 - 15
y = -8
d)
4z = 7
z = 7/4
e)
-z = -8
z = 8
f)
7x = 4
x = 4/7
Bonne soiree
Verified answer
Bonsoira) x+7 = 8
x = 1
b) t-9 = 3
t = 3+9
t = 12
c) y + 15 = 7
y = 7-15
y = -8
d) 4z= -7
z = -7/4
e) -z = - 8
z = 8
f) 7 x = 4
x = 4/7
Bon courage.