15 3/28-(4 11/28+у) = 7-1 9/28

Question

15 3/28-(4 11/28+у) = 7-1 9/28

Answer 1

15 3/28-(4 11/28+у)=5 19/28
4 11/28+у=15 3/28-5 19/28
4 11/28+у=14 31/28-5 19/28
4 11/28+у=9 12/28
у=9 12/28-4 11/28
у=5 1/28

Answer 2

В приложении решение

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