Question

(0,5)^x = 1/64

(3/7)^3x-7 = (7/3)^7x-3

Answer 1

$( frac{1}{2})^x = frac{1}{64} \2^{-x} = 2^{-6} \ x=6$
$( frac{3}{7} )^{3x-7} = ( frac{7}{3} )^{7x-3} \ ( frac{3}{7} )^{3x-7} = ( frac{3}{7} )^{-7x+3} \ 3x-7=-7x+3 \ 10x=10 \ x=1$