Ok so as the title says, it's probably really easy but I'm having trouble getting a value of x:

(4^(x)+3)/2 = 2^(x+1)

I've got down to

xlog(4) = log(2^(x+2)-3)

And I have NO idea how to simplify to get rid of that -3.... Please help! I'm sure there's something REALLY obvious that I'm missing (Wondering) Thank you!