1. Literal Equations 1
Definition 2
Examples 3
Practice Problems

2. Literal Equations
A formula is a type of literal equation because it contains constants and variables.
We can use equation properties to change formulas to better meet different situations.
Typically multi-variable
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3. Convert 23° Fahrenheit to Degrees Celsius.1
-5°C equals 23°F 1

4. Using the formula Distance = Rate x Time or D=RT, we can solve the formula for R or T.
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9. The formula for area of rectangle is A = LW.
Find the formula for L.
Divide both sides of the = sign by W.
A = LW W W
A = L W

10. Key Skills Manipulate literal equations.
Subtract 5q from both sides of the = sign.
Solve for r.
5q + 2r = p
-5q = q
2r = p – 5q
Divide both sides of the = sign by 2. 2 2
p – 5q 2
r =

11. TRY THESE
A – P = I , solve for A
a + bc = d, solve for b
-a a
+ P + P
A = P + I
bc = d - a
c c
b = d - a c