( 3/4 ) : ( 1/8х + 3/8 ) - ( 1/2 ) = 5/14
( 3/4 ) : ( 1/8х + 3/8 ) = 5/14 + ( 7/14 )
( 3/4 ) : ( 1/8х + 3/8 ) = 6/7
( 1/8 ) Х + ( 3/8 ) = ( 3/4 ) : ( 6/7 )
( 1/8 ) Х + ( 3/8 ) = 21/24
( 1/8 ) Х = ( 21/24 ) - ( 9/24 )
( 1/8 ) Х = 1/2
Х = ( 1/2 ) : ( 1/8 )
Х = 4