Найдите корень уравнения
1) (1/81)^х-8=2
2) log6(х+4)= log6(4х-2)
3)(1/3)^x-13=1/9
ОДЗ
ОДЗ x>0.5
x+4=4x-2
3x=6
x=2
x-13=2
x=15
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ОДЗ
ОДЗ x>0.5
x+4=4x-2
3x=6
x=2
x-13=2
x=15