1. 3-8 Solving Equations and Formulas Objective Students will be able to solve equations for given variables.

2. When solving formulas for a specific variable, we are still going to solve the same way we solve single variable equations. The goal is still going to be to isolate the specified variable terms on one side of the equation, and all other terms on the other side of the equation. We then want the coefficient on our specified variable to be a 1.

3. How would you solve this problem? Example 1: Solve each equation or formulas for the variable specified. a)

4. b) c)

5. d) e)

6. Try these. f)g) h)i)

8. Try these.

9. Example 2: Solve each equation or formula for the specified variable. a)b)

10. c)d)

11. Try these. e)f) g)

12. Example 3: Solve each formula for the specified quantity. a) for width Find the width when the perimeter is 36 inches and the length is 3 inches.

13. Try this. b) for height Find the height of a rectangular prism when the volume is 36 cubic feet, the length is 2 feet, and the width is 3 feet.