Bonjour;
a)
7y = 18-4
7y = 14
y = 14/7
y = 2
b)
2/3 -7/4 = x
8/12-21/12 = x
- 13/12 =x
c)
2x-x = 3+8
x = 11
d)
7x-5x-3
2x =-3
x = -3/2 = -1,5
Réponse:
skdkzmzjzbd
Explications étape par étape:
jeievd
kdkdbdb
jekekek
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Bonjour;
a)
7y = 18-4
7y = 14
y = 14/7
y = 2
b)
2/3 -7/4 = x
8/12-21/12 = x
- 13/12 =x
c)
2x-x = 3+8
x = 11
d)
7x-5x-3
2x =-3
x = -3/2 = -1,5
Réponse:
skdkzmzjzbd
Explications étape par étape:
jeievd
kdkdbdb
jekekek