Question

Tìm x:

a) \(x-\dfrac{2}{3}=\dfrac{3}{5}-\dfrac{1}{4}\)

b) \(-\dfrac{2}{3}.x+\dfrac{1}{5}=\dfrac{1}{10}\)

Answer 1

x - 2/3 = 3/5 - 1/4

x - 2/3 = 7/20

x = 7/20 + 2/3 

x = 61/60

- 2/3 . x + 1/5 = 1/10

-2/3 . x = 1/10 - 1/5

- 2/3 . x = -1/10

x = -1/10 : -2/3

x = 3/20