29/14-5/3*х=26/21
87-70х=52
-70 х =52-87
-70 х -35
х=1/2
х=0,5
х=2 -1
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29/14-5/3*х=26/21
87-70х=52
-70 х =52-87
-70 х -35
х=1/2
х=0,5
х=2 -1