Question

y/20 - 7/12 = 11/30 , tìm y . Gíup t vs nhé , mơn ccau nhìu :0

Answer 1

\(\dfrac{y}{20}-\dfrac{7}{12}=\dfrac{11}{30}\)

\(\dfrac{y}{20}=\dfrac{11}{30}+\dfrac{7}{12}\)

\(\dfrac{y}{20}=\dfrac{19}{20}\)

\(y\times20=19\times20\)

\(y\times20=380\)

\(y=19\)

Answer 2

\(\dfrac{y}{20}-\dfrac{7}{12}=\dfrac{11}{30}\)

\(\dfrac{y}{20}=\dfrac{11}{30}+\dfrac{7}{12}\)

\(\dfrac{y}{20}=\dfrac{22}{60}+\dfrac{35}{60}\)

\(\dfrac{y}{20}=\dfrac{57}{60}\)

\(y=\dfrac{57}{60}\times20\)

\(y=\dfrac{57}{3}\)

y =19