Question

Решите уравнение
X+2/7-x/3=0

Answer 1

$x + frac{2}{7} - frac{x}{3} = 0 \ \ 21x + 6 - 7x = 0 \ 21x - 7x \ (21 - 7)x = 14x \ 14x + 6 = 0 \ 14x + 6 - 6 = 0 - 6 \ 14x = 0 - 6 \ 14x = - 6 \ x = frac{3}{7}$