X/8-X/6=X/4-7/8 Деление дробное

Question

X/8-X/6=X/4-7/8 Деление дробное

Answer 1

x/8 - x/6 = x/4 - 7/8 | *24

3x -4x = 6x - 21

-x - 6x = -21

-7x = - 21 | *-1

7x = 21 

x=3