hi i need help on solving these questions with all the log rules i'm confusing myself..

1). 7^(x-2) = 1/2^(x-2)

2). 10^(x^2+2x-8) = 1

3). (1/4)^(x+2) * 32^(x-1) = 64^(x-2)

i know i have to solve for x but i keep getting the wrong answers when i plug it into my graph and find the intersections for the answer.

thanks!