Question

Ln(x+4) - ln(x+3) = ln3

Answer 1

ОДЗ
x+4≥0
x+3≥0

x≥-4
x≥-3

x∈[-3;+∞)

ln(x+4) - ln(x+3) = ln3
ln((x+4)/(x+3)) = ln3
(x+4)/(x+3)=3
x+4=3x+9
x=-2,5