2. Literal Equations
 A literal equation is an equation with
two or more variables.
 To rewrite:
 Solve for one variable, treating the
others like numbers.

3. Examples
 Solve for the red variable.
 2y + 5x = 6
 4x – 4y = 1

4. You Try!
 Solve for y.
 12 = 6x + 3y

5. Examples
 Solve for the red variable.
 Area of a rectangle: A = bh
 Simple Interest: I = Prt

6.  Volume of a Cylinder: V = πr2h

7. You Try!
 d = rt
R – C = P

8. Example
 The area of a triangle is found using
A = ½ bh.
 Solve for b.
 The area is 6 cm2 and height is 3 cm.
How long is the base?
You Try!
 Solve for h.
 The area is 8 cm2 and base is 4 cm.
What is the height?