Ответы и объяснения

2012-12-13T21:36:37+00:00

log1/2;(3-x)=-2

log1/2;(3-x)=-2*log1/2;1/2

log1/2;(3-x)=log1/2;(1/2)^(-2)

log1/2;(3-x)=log1/2;2^2

log1/2;(3-x)=log1/2;4

3-x=4

x=-1