|х|/16=32/25,6; 1,8/|х|=3/8,5; 6,9/11,5=5,7/|х|; 9,8/2,1=12,6/|х|.

|х| /16=32/25,6
|х| =16*32/25,6
|х|=20
Х=+20
х=-20

1,8/|х| =3/8.5
|Х|=1,8*8,5 /3
х=5,1
х=-5,1

6,9/11,5=12,6/|х|
|х|=11,5*5,7/6,9
х=9,5
х=-9,5

9,8/2,1=12,6/|Х|
|х|=2,1*12,6/9,8
х=2,7
х=-2,7