Question

Tìm X

x+2/3=2 và 1/2

 

3 và 4/5 + x = 18/5

Answer 1

\(x+\dfrac{2}{3}=2\dfrac{1}{2}\)

\(x+\dfrac{2}{3}=\dfrac{5}{2}\)

\(x=\dfrac{5}{2}-\dfrac{2}{3}\)

\(x=\dfrac{15}{6}-\dfrac{4}{6}\)

\(x=\dfrac{11}{6}\)

--------------------------------------

\(3\dfrac{4}{5}+x=\dfrac{18}{5}\)

\(\dfrac{19}{5}+x=\dfrac{18}{5}\)

\(x=\dfrac{18}{5}-\dfrac{19}{5}\)

\(x=\dfrac{-1}{5}\)

\(#Bingchilling-Linh\)