Question

x - 9/2 = -2,5

Answer 1

\(x-\dfrac{9}{2}=-2,5\)

\(x-\dfrac{9}{2}=-\dfrac{5}{2}\)

\(x=\dfrac{-5}{2}+\dfrac{9}{2}\)

\(x=2\)

Answer 2

\(x-\dfrac{9}{2}=2,5\)

\(\Rightarrow7\)

Answer 3

\(x-\dfrac{9}{2}=-\dfrac{2}{5}\Leftrightarrow x=-\dfrac{2}{5}+\dfrac{9}{2}=\dfrac{41}{10}\)

Answer 4

\(x-\dfrac{9}{2}=-2,5\)

\(\Rightarrow x=-2,5+\dfrac{9}{2}\)

\(\Rightarrow x=2\)

Answer 5

\(x-\dfrac{9}{2}=-\dfrac{5}{2}\)

\(\Leftrightarrow\)\(x=-\dfrac{5}{2}+\dfrac{9}{2}\)

\(\Leftrightarrow\)\(x=2\)

Answer 6

Ta có: \(x-\dfrac{9}{2}=-\dfrac{5}{2}\)

\(\Leftrightarrow x=-\dfrac{5}{2}+\dfrac{9}{2}=\dfrac{4}{2}=2\)