8х-3(2х+1)=2х+4
8х-6х-3=2х+4
2х-3=2х+4
-3=4
х∈∅
22-7= 93-4= 28+9= 32-7 = 73-4= 38+9= 42-7 = 53-4= 48+9=: 22-7=15 33-4=29 28+9=37 32-7=25 43-4=39 38+9=47 42-7=35 53-4=49 48+9=57 52-7=45 63-4=59 58+9=67 62-7=55 73-4=69 68+9=77
8х - 6х + 1 = 2х + 4
8х - 6х - 2х = 4 - 1
х = 3
ответ : 3