Question

[nguyễn vũ duy]

tìm y biết \(\frac{9}{4}\)-y * \(\frac{5}{6}\)=\(\frac{1}{2}\)+\(\frac{2}{3}\)

Answer 1

[Nguyễn Tiến Dũng]

9/4-y*5/6=1/2+2/3

9/4-y*5/6=7/6

y*5/6=9/4-7/6

y*5/6=13/12

y=13/12:5/6

y=13/12*6/5

y=13/10