Question

tìm x,biết 5x-4/5=x+13/15

Answer 1

\(5x-\dfrac{4}{5}=x+\dfrac{13}{15}\)

\(\Rightarrow5x-x=\dfrac{13}{15}+\dfrac{4}{5}\)

\(\Rightarrow4x=\dfrac{13}{15}+\dfrac{12}{15}\)

\(\Rightarrow4x=\dfrac{25}{15}\)

\(\Rightarrow4x=\dfrac{5}{3}\)

\(\Rightarrow x=\dfrac{5}{3}:4\)

\(\Rightarrow x=\dfrac{5}{12}\)

Answer 2

      5x-4/5=x+13/15

<=>5x-x=13/15+4/5

<=>4x=5/3

<=>x=5/12

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