\(\dfrac{-11}{12}.y+0,25=\dfrac{5}{6}\)

\(\Rightarrow\dfrac{-11}{12}.y=\dfrac{5}{6}-0,25=\dfrac{7}{12}\)

\(\Rightarrow y=\dfrac{7}{12}:\dfrac{-11}{12}=\dfrac{-7}{11}\)

Vậy...............

tìm y à?

\(\dfrac{-11}{12}\times y+0,25=\dfrac{5}{6}\)

\(\Leftrightarrow\dfrac{-11}{12}\times y=\dfrac{7}{12}\)

\(\Leftrightarrow y=\dfrac{-7}{11}\)

-11/12.y+0,25=5/6

-11/12.y=5/6-0,25

-11/12.y=7/12

y=7/12:-11/12

y=-7/11

-11/12.y +1/4 = 5/6

-11/12.y = 5/6 -1/4

-11/12.y = 7/12

y = 7/12 : -11/12

y = -7/11

\(\dfrac{11}{12}.y+0,25=\dfrac{5}{6}\)
\(\dfrac{11}{12}.y+\dfrac{25}{100}=\dfrac{5}{6}\)
\(\dfrac{11}{12}.y+\dfrac{1}{4}=\dfrac{5}{6}\)
\(\dfrac{11}{12}.y=\dfrac{5}{6}-\dfrac{1}{4}\)
\(\dfrac{11}{12}.y=\dfrac{20}{24}-\dfrac{6}{24}\)
\(\dfrac{11}{12}.y=\dfrac{14}{24}\)
\(\dfrac{11}{12}.y=\dfrac{7}{12}\)
\(y=\dfrac{7}{12}:\dfrac{11}{12}\)
\(y=\dfrac{7}{12}.\dfrac{12}{11}\)
\(y=\dfrac{7}{11}\)
Vậy \(y=\dfrac{7}{11}\)

- chết, lộn đề, kq' của mình sai rồi nhé

\(\dfrac{-11}{12}.y+0.25=\dfrac{5}{6}\)

\(\Rightarrow\dfrac{-11}{12}.y=\dfrac{5}{6}-0.25\)

\(\Rightarrow\dfrac{-11}{12}.y=\dfrac{7}{12}\)

\(\Rightarrow y=\dfrac{7}{12}:\dfrac{-11}{12}\)

\(\Rightarrow y=\dfrac{-7}{11}\)

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