Ответ:
1)
х+2/9-1=2х+1/18-х/6
x-7/9=2x+1/18-x/6
18x-14=36x+1-3x
18x-14=33x+1
18x-33x=1+14
-15x=15
x=-1
2)
5|х-4|=135
|x-4|=27
x-4=27
x-4=-27
x=31
x=-23
x1=-23;x2=31
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Answers & Comments
Ответ:
1)
х+2/9-1=2х+1/18-х/6
x-7/9=2x+1/18-x/6
18x-14=36x+1-3x
18x-14=33x+1
18x-33x=1+14
-15x=15
x=-1
2)
5|х-4|=135
|x-4|=27
x-4=27
x-4=-27
x=31
x=-23
x1=-23;x2=31