Question

решите уравнения 7 7/30-(5 11/30-y)=3 19/30

Answer 1

 7 7/30-(5 11/30-у)=3 19/30
7 7/30-5 11/30+у=3 19/30
у=3 19/30-7 7/30+5 11/30
у=1 23/30