The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. One day, she counts 15 seats and 22 wheels. Which equation in slope-intercept form shows that the number of bicycles (x) plus the number of unicycles (y) is 15?
![The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels One day she counts 15 seats and 22 wheels Which equation class=](https://us-static.z-dn.net/files/db8/701b6e8cda94e80755da84eaf4f47ae6.jpg)