12*(32-(36+8х):5)=144
32-(36+8х) = 144:12
32- (36+8х) = 12
32-(36+8х) = 12*5
32-(36+8х) = 60
36+8х =60-32
36+8х =28
8х=36-28
8х=8
х=1
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(2х+4)*20-85=35
(2х+4)*20 =85+35
(2х+4)*20=120
2х+4=120:20
2х+4=6
2х=6-4
2х= 2
Х=1
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32+(136-х*8):4=64
32+(136-х*8) =16
136-х*8=32-16
136-Х*8=16
8х=136-16
8х=120
х=120:8
х=15
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(21+75:(2х+13))*5=120
(21+75:(2х+13))=120:5
(21+75:(2х+13))=24
75:(2х+13)=24-21
75:(2х+13)=3
2х+13=75:3
2х+13=25
2х=25-13
2Х=12
х=12:2
Х=6
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