1)(х+853): 5+936=1133 2)(6003-2472: у)х7=41300 3)(592+181хz): 32+2051=2160 4)х: 27х287-112х5=7910: 565

1)(х+853):5+936=1133
(х+853):5=1133-936
(х+853):5=197
(х+853)=197:5
(х+853)=985
х=985-853
х=132
2)(6003-2472:у)х 7=41300
(6003-2472:у)=41300:7
(6003-2472:у)=5900
-2472:у=5900-6003
-2472:у=-103
у=24
3)(592+181хZ):32+2051=2160
(592+181хZ):32=2160-2051
(592+181хZ):32=109
(592+181хZ)=109*32
(592+181хZ)=3488
181хZ=3488-592
181хZ=2896
Z=2896:181
Z=16
4)Х:27х287-112х5=7910:565
Х:27х287-112х5=14
Х:27х287-560=14
Х:27х287=574
Х:27=574:287
Х:27=2
Х=2*27
Х=54