16,3х-(3,8х+7,4)=4,06 ,
16,3х - 3,8х - 7,4 = 4,06,
16,3х - 3,8х = 4,06 + 7,4,
12,5х = 11,46,
х = 0,9168,
проверка:
16,3*0,9168 - (3,8*0,9168 + 7,4) = 4,06,
14,94384 - (3,48384 + 7,4) = 4,06,
11,46 - 7,4 = 4,06,
4,06 = 4,06
