Question

помогите
$frac{1}{2} times ( frac{1}{3} x + frac{2}{3} ) - frac{1}{4} times ( frac{1}{2} x - frac{1}{5} ) = frac{2}{3}$

Answer 1

1/2 * (x/3 + 2/3) - 1/4 * (x/2 - 1/5) = 2/3

(x + 2)/6 - (5x - 2)/40 = 2/3

20(x + 2) - 3(5x - 2) = 80

40x + 40 - 15x + 6 = 80

25x = 34

x = 1 9/25