Question

 log1,2(x+3)=log1,2(2x-4)

 

Answer 1

$log_{1.2} (x+3)=log_{1.2} (2x-4);\ x+3 > 0; 2x-4 > 0;\ x > -3; 2x > 4;\ x > -3; x > 2;\ x > 2;\ x+3=2x-4;\ 2x-4=x+3;\ 2x-x=3+4;\ x=7;\ 7>2$

ответ: 7