Question

решите уравнение x/5+x/4=x/2-1/4

Answer 1

х/5+х/4-х/2=-1/4
1/5*х+1/4*х-1/2х=-1/4
4/20*х+5/20*х-10/20*х=-1/4
-1/20*х=-1/4
х=1/4:1/20=1/4*20/1=5