Question

решите уравнение x-2/5 - x-1/3=3

Answer 1

(х-2)/5 - (х-1)/3 = 3  / *15
3*(х-2) - 5*(х-1) = 3*15
3х-6- 5х+5=45
-2х-1=45
-2х=46  / :(-2)
х= -23