Ответы и объяснения

2012-10-09T15:40:56+04:00

-3x + 1.5 = 0

-3x = -1.5

x = (-1.5)/(-3)

x = 0.5

 

-3x + 1.5 = 1.5

-3x = 1.5 - 1.5

-3x = 0

x = 0 : (-3)

x = 0