Question

Решите уравнение (1/3)^x+4 =27^x

Answer 1

$(frac{1}{3})^{x+4}=27^{x}\\(3^{-1})^{x+4}=(3^3)^{x}\\3^{-x-4}=3^{3x}\\-x-4=3x\\-4=4x\\4x=-4\\boxed {x=-1}$