Question

50/75 = x - 12 phần 81

Answer 1

x - 12/81 = 50/75

x             = 50/75 + 12/81

x             = 22/27

Answer 2

\(\dfrac{2}{3}\)= x - \(\dfrac{4}{27}\)

\(\dfrac{18}{27}\) = x - \(\dfrac{4}{27}\)

x = \(\dfrac{18}{27}\) + \(\dfrac{4}{27}\)

x = \(\dfrac{22}{27}\)

Answer 3

Ta có: \(\dfrac{50}{75}=\dfrac{x-12}{81}\)

\(\Leftrightarrow x-12=54\)

hay x=66