Question

2[x+2]-8[8x-1]=10

-[a+1]-[2a+1]=6

Answer 1

2х+4-64х+8=10
12-62х=10
62х=2
х=2/62=1/31
 проверка    4 2/31+5  29/31=10

-а-1-2а-1=6
-3а-2=6
-3а=8
а=8: (-3)
а=-8/3= -2 2/3
проверка 1 2/3+13/3 =5/3+13/3=18/3=6