Ok i know this should be a relatively simple equation but i haven't done this stuff in so long i can't remember how to solve it. here goes. 4^(x+2) = 7^x +681 Solve for x I know the answer is 3 from simple trial and error but i can't show the work to prove it and i know that harder problems exist so i would like to know the procedure. I'm pretty sure that either logs or natural logs (LN) is required somehow. Any help would be greatly appreciated. Thanks.