Log4(x+3)=log4(4x-15)

Question

Log4(x+3)=log4(4x-15)

Answer 1

log_4(x+3)=log_4(4x-15)     ОДЗ: x+3>0 => x>-3
x+3=4x-15                                    4x-15>0 => 4x>15 => x>3.75
x-4x=-15-3
-3x=-18
x=-18/-3
x=6