Question

9/14-x/7:5/3-3/14

help me

Answer 1

Bổ sung đề:\(\dfrac{9}{14}-\dfrac{x}{7}:\dfrac{5}{3}-\dfrac{3}{14}=0\)

\(\Rightarrow\dfrac{9}{14}-\dfrac{x}{7}:\dfrac{5}{3}=0+\dfrac{3}{14}\)

\(\Rightarrow\dfrac{9}{14}-\dfrac{x}{7}:\dfrac{5}{3}=\dfrac{3}{14}\)

\(\Rightarrow\dfrac{x}{7}:\dfrac{5}{3}=\dfrac{9}{14}-\dfrac{3}{14}\)

\(\Rightarrow\dfrac{x}{7}:\dfrac{5}{3}=\dfrac{3}{7}\)

\(\Rightarrow\dfrac{x}{7}=\dfrac{3}{7}\times\dfrac{5}{3}\)

\(\Rightarrow\dfrac{x}{7}=\dfrac{5}{7}\)

\(\Rightarrow x=5\)

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