lumberjuck

Verified answer

15:6=10:(2х-1)
(2x-1)*15=6*10 |*1/5
(2x-1)*3=12 |*1/3
2x-1=4
2x=5
x=5/2=2,5

missguldman1802

Verified answer

15*(2х-1)=60
30х-15=60
30х=75
х=75/30
х=2,5