Ответы и объяснения

2014-04-14T04:34:07+04:00
5/6·(1/2·x - 2/3)=3x - 2·1/4
5/6 * 1/2х - 5/6 * 2/3 = 3х - 2/4
5/12х - 10/18 = 3х - 1/2
5/12х - 3х = 5/9 - 1/2
2 7/12х = 10/18 - 9/18
31/12х = 1/18
х = 1/18 : 31/12
х = 1/18 * 12/31
х = 2/93