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## PowerPoint Slideshow about ' Literal Equations and Formulas' - alexandra-york

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Literal Equations

A literal equation is an equation that involves two or more variables.

Formulas

A formula is a literal equation that states a rule for a relationship among quantities.

The formula relates degrees Fahrenheit

to degrees Celsius.

The variables in a formula are often related to the names of the quantities involves, such as F for Fahrenheit.

When working with formulas, the values for one or more of the variables sometimes known, leaving the value of one variable to be determined. You can use the temperature conversion formula to easily convert from degrees Fahrenheit to degrees Celsius.

Solve the equationfor.

- Given

- Isolate the term with the variable
- you want to solve for: Subtract
- from both sides of the equation.

- Solution.

Solve the equationfor.

- Given

- Isolate the term with the variable
- you want to solve for: Subtract b
- from both sides of the equation.

- Divide by the coefficient.

- Solution.

Solve the equationfor.

- Given

- Isolate the term with the variable
- you want to solve for: Subtract b
- from both sides of the equation.

- Divide by the coefficient.

- Solution.

- Given

- Isolate the term with the variable
- you are solving for; Subtract
- from both sides of the equation.

- Solution.

- Given

- Isolate the variable you are solving
- for; Subtract y from both sides
- of the equation.

- Divide by the coefficient.

- Solution.

- Given

- Change the order of the
- factors so that the variable
- you are solving for is last.

- Divide by the “coefficient”.

- Solution.

- Given

- Multiply both sides of the
- equation by .

- Divide by the “coefficient”.

- Solution.

- Given

- Isolate the variable you are
- solving for; Subtract from
- both sides of the equation.

- Divide by the coefficient.

- Solution…ALMOST DONE!

Is the equation in simplest form?

NO! … can be simplified!

- Divide each term by the
- denominator and simplify
- where possible.

- Solution…In simplest form !

DISTRIBUTE…………OR DIVIDE

ANSWER

NEEDS TO BE SIMPLIFED!

=

DOES NOT NEED TO BE SIMPLIFED!

What happens when the variable you want

to solve for is in more than one term?

Solve the equation for.

??????????????????

When the variable you are solving for occurs in more than one term or in a numerator and/or denominator.

Don’t forget the “F” word !!!!!!!

- Given

- Factor out the variable
- you are solving for.

- Divide by the “coefficient”.

- Solution.

- Given

- Factor out the variable
- you are solving for.

- Divide by the “coefficient”.

- Solution.

WHAT IS THE LCD?

- Given

- Multiply the equation by
- the LCD.

- Remember the LCD is multiplied by the numerator!

- Simplify

- been eliminated!.

- Move the variable you are solving for to one side of
- the equation. (Not necessary)

- Factor.

- Divide by the “coefficient”.

- Solution.

the variable you are solving for is

in the numerator

and

in the denominator?

Solve the equation for.

- variable you are solving for
- to one side of the equation.

)

- Factor.

- Divide by the “coefficient”.

- Solution.

- Given

- Factor out the variable
- you are solving for.

- Divide by the “coefficient”.

- Solution.

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