So I've been working this ridiculously simple problem for two days and I STILL haven't gotten it right once. It's really, really pissing me off because there's no reason why I shouldn't be able to solve this. It's the only one in the whole chapter I can't get. I've tried working it out at least 10 different ways. Can someone please work this out for me so I can see what I'm doing wrong?
7/(2x+1) - 8x/(2x-1) = -4
No matter how I work it out I either get 16x2-22x+11 = 0 or 12x2-22x+11 = 0 and I still haven't found a way to simplify it past that.