3/х-19/х=-9-3
-16/х=-12
16/х=12
12х=16
х=4/3
709.602+290.498=1.000.100
569.487.652+40.513.349=610.001.001
200.010.030-199.879.078=130.952
2.704.608.079-296.392.927=2.408.215.152
8640:8=1080
5250:5=1050
178:2=89
18*32=576
6293:31=203
2932-2782=150
121.350-115.325=6.025
6.025:5=1.205
5100:170=30
110.292:14=7.878
7878:101=78
78*231=18.018
90*3=270
25*25=625
30000000*40=1200000000
98-79=19
121-76=45
654-398=256
126+3395=3521
|1-|1-х||=0.5
|1-|1-х||-0.5=0
1-0.5=|1-х|
0,5=|1-х|
х1=0.5
х2=-1.5
х1+х2=0.5+(-1.5)=-1
Ответ: -1