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Solving Literal Equations and Formulas

Solving Literal Equations and Formulas. Foundations of Algebra E quations Unit. Literal Equations. How is a literal equation different than a regular equation? A literal equation contains more LETTERS! It can be a formula that is used in math, science, etc..

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Solving Literal Equations and Formulas

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  1. Solving Literal Equations and Formulas Foundations of Algebra Equations Unit

  2. Literal Equations • How is a literal equation different than a regular equation? • A literal equation contains more LETTERS! • It can be a formula that is used in math, science, etc.. • You may need to solve for a variable other than x.

  3. A literal equation is an equation that contains two or more variables. Example: x = yz A formula is an equation that states a rule for the relationship between certain quantities. Example: A = lw (Area = length times width) Definitions:

  4. 1) Solve the equation -5x + y = -56 for x. Examples

  5. 2) Solve a(y + 1) = b for y. To solve for y: First divide by a Then subtract 1 Another example:

  6. 3) Solve 3ax - b = d - 4cx for x. First, we must get all terms with x together on one side. Add 4cx to both sides Add b to both sides Next, use the distributive property to factor x out of the two terms on the left. Now, x is being multiplied by (3a + 4c). To undo this, divide both sides by (3a + 4c). Another Example

  7. Some to try. 4) Solve P = 1.2W for W. H2 5) Solve P = 2l + 2w for l. 6) Solve 4x - 3m = 2m

  8. Check Yourself

  9. Check Yourself.

  10. Check Yourself Answers

  11. Extra Practice

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