Question

Tìm x, a) 4⅓-x=2 b)x+2⅙=5⅔ c)4³/10-x=1⅗ Em cần gấp ạ

Answer 1

a) \(4\dfrac{1}{3}-x=2\)

\(\dfrac{13}{3}-x=2\)

\(x=\dfrac{13}{3}-2\)

\(x=\dfrac{7}{3}\)

b) \(x+2\dfrac{1}{6}=5\dfrac{2}{3}\)

\(x+\dfrac{13}{6}=\dfrac{17}{3}\)

\(x=\dfrac{17}{3}-\dfrac{13}{6}=\dfrac{7}{2}\)

c) \(4\dfrac{3}{10}-x=1\dfrac{3}{5}\)

\(\dfrac{43}{10}-x=\dfrac{8}{5}\)

\(x=\dfrac{43}{10}-\dfrac{8}{5}=\dfrac{27}{10}\)