Question

Х-х/7=3
Решите уравнение)))))

Answer 1

7/7-x/7=3/1
7-x=3
-x=3-7
x=-3+7
x=4

Answer 2

$x- \frac{x}{7}=3\\ \frac{7x}{7}- \frac{x}{7} =3\\ \frac{6x}{7}=3\\6x=21\\x= \frac{21}{6}= 3\frac{3}{6} = 3\frac{1}{2}$