So let's add 6 to both sides. You get 2x is equal to 7. x is equal to 7 halves, which is the same thing as 3 and a half. So it's definitely in this interval right over here. So we've just found our c. c is equal to 7 halves. And let's just graph this to really make sure that this makes sense. So this right over here is our y-axis. And then this right over here is our x-axis.