Aiutino (62211)

[chaty]

(x- 1/2) : (1/2+ 1/3) = (1/1+ 1/1) : (2/3-1/4)

[enrico___1]

Esegui le somme tra parentesi

(x- 1/2)=(2x-1)/2
(1/2+ 1/3)=5/6
(1/1+1/1)=2
(2/3-1/4)=5/12

(2x-1)/2 : 5/6 = 2 : 5/12

(2x-1)/2=(5/3)*5/12

(2x-1)/2=25/36

(2x-1)=50/36

2x=61/36

x=51/72

x=17/27