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27^x-28*3^x+1+3^5-x=0 equation

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  x       x                  
27  - 28*3  + 1 + 243 - x = 0
$$- x + \left(\left(\left(27^{x} - 28 \cdot 3^{x}\right) + 1\right) + 243\right) = 0$$