помогите решить уравнение с логарифмом
-1(logx(5)-(1/2)logx(12)+1/2(logx(3))=1
-1(logx(5)-1/2(logx(12)-logx(3))=1
-1(logx(5)-1/2(logx(4)=1
-2logx(5)-logx(4)=2
-(logx(5^2)+ logx(4))=2
logx(100)=-2
x=0.1
!!!