Question

решите уравнение 4 5/7-(5 11/30-y)=3 19/30

Answer 1

4 5/7-(5 11/30-y)=3 19/30

y=3 19/30+5 11/30-4 5/7
y=9-4 5/7
y=63/7-33/7
y=30/7=4 2/7