Question

0.4x - 0.5/0.3x + 0.2=2/5​

Answer 1

0.4 x - 0.5 / 0.3 + 0.2 = 2/5

Solution

0.4x - 5 / 3 x + 0.2 = 2/5

- 19 / 15 x + 0.2 = 2/5

- 19 / 15 x = 2/5 - 0.2

- 19 / 15 x = 2/5 - 1/5

- 19 / 15 x = 2 - 1 / 5

- 19 / 15 x = 1/5

x = 1/5 ( - 15 / 19 )

x = 1 ( - 15 )

5× 19

x = 15 / 95

x =. - 3 /19