Solving the equation should be no problem. The difficulty of application problems should be to list equations.

However, I think it is relatively simple to combine with a linear function, but it will be more difficult to combine with a quadratic function.

This kind of application problem should be available every year. It's no use being afraid, so you should study hard.

You got a quadratic function in the senior high school entrance examination. If it is a linear function, you should be glad.