Ответы и объяснения

2013-09-16T01:40:48+00:00
А. 3х -2 = 0
3х = 2
х = 2/3
б. 7х + 1.5 = 10х - 3.5
7х -10х = -3.5 - 1.5
-3х = -5
х = 5/3
2013-09-16T06:55:17+00:00
А. 3х -2 = 0
3х = 2
х = 2/3
б. 7х + 1.5 = 10х - 3.5
7х -10х = -3.5 - 1.5
-3х = -5
х = 5/3