Sagot :
Réponse :
Explications étape par étape
Bonjour,
a.
x - 5/4 = 4/3
x = 4/3 +5/4 = 16/12 + 15/12 = 31/12
b.
x + 7/3 = 5/7
x=5/7 -7/3 = 15/21 - 49/21 = -34/21
c.
x - 5/8 = 3/12
x = 3/12 +5/8 = 6/24 + 15/24 = 21/24 = 7/8
d.
1/3 - x = -2/9
1/3 +2/9 = x
3/9 +2/9 = x
x= 5/9
e.
5/18 - x = 11/ 45
5/18 -11/45 =x
25/90 - 22/90 = x
x = 3/90= 1/30
f.
x - 12/25 = -11/15
x = -11/15 + 12/25
x = -110/150 + 72/150
x= - 38/150 = -19/ 75
