1/2х-10 = 4/8
0,5Х-10=0,5
0,5х=10,5
х=21
1/2x = 4/8 + 10
1/2x = 4/8 + 80/8
1/2x = 84/8
x = 84/8 : 1/2
x = 84/8 * 2/1
x = 168/8 = 21
1/2х-10 = 4/8
0,5Х-10=0,5
0,5х=10,5
х=21
1/2х-10 = 4/8
1/2x = 4/8 + 10
1/2x = 4/8 + 80/8
1/2x = 84/8
x = 84/8 : 1/2
x = 84/8 * 2/1
x = 168/8 = 21