Răspuns:
x+5/3-x+15/6=1/3-x+3/4,x e R
2(x+5)/3- (x+15)/6= 1/3- (x+3)/4
(2x+10)/6- (x+15)/6= 4/12- 3(x+3)/12
(2x+10-x-15)/6= (4-3x-9)/12
(x-5)/6= (-3x-5)/12
12(x-5)= 6(-3x-5)
12x-60= - 18x-30
12x+18x= - 30+60
30x= 30
x= 30/30
x= 1
Explicație pas cu pas: