Question

помогите!!!

$1){2}^{ x} = - 2$
$2){9}^{x - 7} = 1$
$3){5}^{x - 2} - {8}^{x - 2} = 0$
$4){3}^{x} + {3}^{x + 1} = 36$
$5) {4}^{4 - x} = {2}^{2x}$
​