Question

два уровнения срочно

Answer 1

$( frac{1}{5})^{3 - 2x} = 125 \ {5}^{2x - 3} = {5}^{3} \ 2x - 3 = 3 \ 2x = 6 \ x = 3$
$( { frac{1}{3} })^{4 - 2x} = 9 \ {3}^{2x - 4} = {3}^{2} \ 2x - 4 = 2 \ 2x = 6 \ x = 3$