Question

tìm x

9/2-x=2/9

Answer 1

x=9/2-2/9=77/18

Answer 2

\(\dfrac{9}{2}-x=\dfrac{2}{9}\)

\(\Rightarrow x=\dfrac{9}{2}-\dfrac{2}{9}\)

\(\Rightarrow x=\dfrac{81}{18}-\dfrac{4}{18}\)

\(\Rightarrow x=\dfrac{77}{18}\)

Vậy: \(x=\dfrac{77}{18}\)

Answer 3

\(\dfrac{9}{2}-x=\dfrac{2}{9}\)

=>\(x=\dfrac{9}{2}-\dfrac{2}{9}\)

=>x=\(\dfrac{9.9}{2.9}-\dfrac{2.2}{9.2}\)

=>\(x=\dfrac{81}{18}-\dfrac{4}{18}\)

=>\(x=\dfrac{77}{18}\)

Answer 4

x=9/2-2/9=77/18