Question

Resolva a seguinte equação exponencial
3^2x-5=27^1-x


(Urgente)

Answer 1

$3^{2x-5} = 27^{1-x}\\\\ 3^{2x-5} = (3^3)^{1-x}\\\\ 3^{2x-5} = 3^{3-3x}\\\\ 2x-5=3-3x\\\\ 2x+3x=3+5\\\\ 5x=8\\\\ x=\dfrac{8}{5}$

Answer 2

3^2x/3^5=27/27^x
3^2x/3^5=3^3/3^3x
3^2x*3^3x=3^3*3^5
3^5x=3^8
x=8/5