Réponse :
Explications étape par étape
Bjr,
x= -5/4+4/3
x= -15/12 + 16/12 = 1/12
x+7/3 =5/7
x= 5/7 -7/3 = 15/21 - 49/21= -34/21
x-5/8 = 3/12
x= 3/12 + 5/8 = 6/24 + 15/24 = 21/24 = 7/8
1/3 -x = -2/9
1/3 +2/9 = x
3/9 + 2/9 = 5/9 = x
5/18-x = 11/45
5/18 -11/45 = x
25/90 - 22/90 = x
x= 3/90 = 1/30
x- 12/25 = -11/15
x= 12/25 - 11/15
x= 36/75 - 55/75 = - 19/75
☺
