**Concept:** Equation of a Demand Curve

**Concept:** Isolating Variables in the Demand Equation

**Concept:** Equation of a Supply Curve

**Concept:** Isolating Variables in the Supply Equation

**Concept:** Finding Equilibrium Using Algebra

**Example:** Finding Equilibrium Using Algebra

**Problem:** The supply and demand curves for a product are as follows:

Q_{d} = 10560 − 80P

P = 1 40Q_{s} + 6

What is the equilibrium price and quantity of the product?

6m **Concept:** Finding Equilibrium with Equations and a Graph