х- столько учеников
х+х+1/2х+1/4х+1=100
2х+1/2х+1/4х=100-1
2 1/2х+1/4х=99
5/2х+1/4х=99
10/4х+1/4х=99
11/4х=99
х=99 : 11/4
х=99 * 4/11
х=9 * 4/1
х=36
36 учеников у учителя
х+х+1/2х+1/4х+1=1002х+1/2х+1/4х=100-12 1/2х+1/4х=995/2х+1/4х=9910/4х+1/4х=9911/4х=99х=99 : 11/4х=99 * 4/11х=9 * 4/1х=36
х- столько учеников
х+х+1/2х+1/4х+1=100
2х+1/2х+1/4х=100-1
2 1/2х+1/4х=99
5/2х+1/4х=99
10/4х+1/4х=99
11/4х=99
х=99 : 11/4
х=99 * 4/11
х=9 * 4/1
х=36
36 учеников у учителя
х+х+1/2х+1/4х+1=100
2х+1/2х+1/4х=100-1
2 1/2х+1/4х=99
5/2х+1/4х=99
10/4х+1/4х=99
11/4х=99
х=99 : 11/4
х=99 * 4/11
х=9 * 4/1
х=36