1. Applying the Principles to Formulas
2.4
Applying the Principles to Formulas
1. Isolate a variable in a formula using the addition and multiplication principles.

2. Isolating a Variable in a Formula Isolate the desired variable.
Treat all other variables like constants
Fraction:
LCD – clear the fractions.
Add – Subtract
Multiply – Divide
Square Root:
Square both sides and check
Perfect Square:
Square root both sides – remember ±.

3. Solve:
Solve for w:
w =

4. Solve for r:
Solve for h:

5. Solve:
Solve for f:

6. Solve for B:

7. Solve for p:

8. Solve:
Solve for d:

9. Solve:
Solve for r:

10. Solve for d:
Rationalize?
Didn’t help.

11. Solve for a: a) b) c) d)
2.4

12. Solve for a: a) b) c) d)
2.4

13. Solve for a: a) b) c) d)
2.4

14. Solve for a: a) b) c) d)
2.4