A literal equation is an equation where variables represent known values. Literal equations allow use to represent things like distance, time, height, pressure as variables in an equation.

1. If , solve for *a* the equation below:

2. If , solve for *x* the equation below:

3. If , solve for *x* the equation below:

4. Solve for *x* the equation below:

5. The volume of a sphere is given in the relation below, as a function of its radius. Find the radius of the sphere as a function of its volume.

6. The circumference of a circle is given in the relation below, as a function of its radius. Find the radius of the circle as a function of its circumference.

7. The speed of a car is v_{1} and the speed of a motorbike is v_{2}, v_{1} > v_{1}. Both car and motorbike travel for the time *t*.
What is the difference between the distances traveled by the car and the motorbike?

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