Given:
Nick has x toy race cars. This is one-third of what Bob has.
So, the number of Nick toys = one-third of what Bob has.
Let the Bob has y toys
So, we can write the following expression:
[tex]x=\frac{1}{3}y[/tex]Solve for y, multiply both sides by (3):
[tex]y=3x[/tex]So, the answer will be:
Bob has (3x) toy race cars.