Question

-14/42 - x = -3/7

Có ai bít làm ko , giải hộ mình với 

Answer 1

\(\dfrac{-14}{42}-x=\dfrac{-3}{7}\)

\(\Rightarrow\dfrac{-7}{21}-x=\dfrac{-3}{7}\)

\(\Rightarrow\dfrac{-7}{21}-x=\dfrac{-9}{21}\)

\(\Rightarrow x=\dfrac{-7}{21}-\dfrac{-9}{21}\)

\(\Rightarrow x=\dfrac{2}{21}\)

Answer 2

\(\dfrac{-14}{42}-x=\dfrac{-3}{7}\)

\(x=\dfrac{-14}{42}-\dfrac{-3}{7}\)

\(x=\dfrac{-14}{42}-\dfrac{-18}{42}\)

\(x=\dfrac{2}{21}\)

Answer 3

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