17/20-х=14/20-3/20
17/20-х=11/20
х=17/20-11/20
х=6/20
8/15-7/15+у=14/15
1/15+у=14/15
у=14/15-1/15
у=13/15
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Answers & Comments
17/20-х=14/20-3/20
17/20-х=11/20
х=17/20-11/20
х=6/20
8/15-7/15+у=14/15
1/15+у=14/15
у=14/15-1/15
у=13/15
17-20x=14-3
-20x=14-3-17
-20x=-6 делим на -20
x=6/20
x=3/10 или x=0,3
8/15-7/15+y=14/15 умножаем все на 15
8-7+15y=14
15y=14-8+7
15y=13 делим на 15
y=13/15 или y=0,8