Question

`x-7/10=9/14`

Answer 1

`x-7/10=9/14`

`=>x=9/14+7/10`

`=>x=90/140+98/140`

`=>x=(90+98)/140`

`=>x=188/140`

`=>x=47/35`

Vậy ... 

`#iuv`

Answer 2

\(x-\dfrac{7}{10}=\dfrac{9}{14}\)

\(\Leftrightarrow x=\dfrac{9}{14}+\dfrac{7}{10}\)

\(\Leftrightarrow x=\dfrac{47}{35}\)

Answer 3

\(x-\dfrac{7}{10}=\dfrac{9}{14}\)
\(x=\dfrac{9}{14}+\dfrac{7}{10}\)
\(x=\dfrac{45}{70}+\dfrac{49}{70}\)
\(x=\dfrac{47}{35}\)

Answer 4

\(x-\dfrac{7}{10}=\dfrac{9}{14}\)

\(x=\dfrac{9}{14}+\dfrac{7}{10}\)

\(x=\dfrac{47}{35}\)

Answer 5

\(x-\dfrac{7}{10}=\dfrac{9}{14}\)

\(x=\dfrac{9}{14}+\dfrac{7}{10}\)

\(x=\dfrac{47}{35}\)

Answer 6

\(x-\dfrac{7}{10}=\dfrac{9}{14}\)

\(x=\dfrac{9}{4}+\dfrac{7}{10}\)

\(x=\dfrac{47}{35}\)