3(x - a) - 2(y + a) = 5 - 4a

2(x + a) + 3(y - a) = 4a - 1

I know how to solve simultaneous literal equations, but I can't quite figure out how to start this one off. I've tried a couple of methods, both of which are too embarrassing and incorrect to be worth mentioning here. If you could point me off in the right direction, that would be great.

Thanks in advance.