1)Y-4/2y=3/8
у-2у=3\8
-у=3/8
2)26/3z=7/z-2
26/3z-7/z=-2
5/3z=-2
3z=5:(-2)
3z=-2,5
z=-2,5:3
z=-5\6
3)3m+4/0,8=2m/0,5
3m+5=2m/0,5
3m-2m/0,5=-5
3m-4m=-5
-m=-5
m=5
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Answers & Comments
1)Y-4/2y=3/8
у-2у=3\8
-у=3/8
2)26/3z=7/z-2
26/3z-7/z=-2
5/3z=-2
3z=5:(-2)
3z=-2,5
z=-2,5:3
z=-5\6
3)3m+4/0,8=2m/0,5
3m+5=2m/0,5
3m-2m/0,5=-5
3m-4m=-5
-m=-5
m=5