Предмет: Математика, автор: яркоесолнышкономер1

x-3/8=1/4 ; у+4/11=3/5 ; 4/15+у=11/25 ;
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Ответы

Автор ответа: кактусик13
0
х-3/8=2/8
х=2/8+3/8.
х=5/8.

у+20/55=33/55
у=33/55-20/55
у= 13/55

20/75+у=33/75
у=33/75-20/75
у=13/75
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