I just want to make sure I'm not making a careless mistake, and so if we want to simplify this, we can subtract 220, 285, 280, and 375 from both sides, and so we would be, if we did that, we would get A, if we subtract that from the left-hand side, we're just going to get A plus 6B, and on the right-hand side, we are going to get, let's get our calculator out, 1,685 minus 220, 220 minus 285, minus 285, minus 280, minus 280, minus 375, minus 375 gets us to 525. So we get A plus 6B is equal to 525, and you say, okay, you did all that work, but we still have one equation with two unknowns. How do we figure out what A and B, how do we figure out what A and B actually are? Well, we know something else. We know, and this was actually much easier to figure out, we know that the sum of this whole table right over here, A plus 110 plus 95 plus 70 plus 75 plus B is equal to 500, or if we, let me write that down. So we know that A plus 110 plus 95 plus 70 plus 75 plus B needs to be equal to 500, needs to be equal to 500, or we could subtract 110 plus 95 plus 70 plus 75 from both sides and get, if you subtract it from the left-hand side, you're just left with A plus B, A plus B, and on the right-hand side, if we start with 500, so 500 minus 110, minus 95, minus 70, minus 75 gets us to 150. So A plus B must be equal to 150, is equal to 150.