02.07 Literal Equations Essential Questions

 How can you solve linear equations and inequalities in one variable, including equations with coefficients represented by letters?  How can you rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations?

In the equation: "distance equals rate times time” ______is the most important part. d=(r)(t)

In d=(r)(t) the more efficient way to evaluate r is to______it from the rest of the equation first.

Work ______to isolate the variable.

 The key to equations is ______.

 Some literal equations (formulas) have several variables. In order to solve for a certain variable, you must consider the ______of the variable you are solving for and “______” what is around it.

 When the entire equation is made up of variable you will need to ______to solve for the desired variable.

APPLY WHAT YOU ARE LEARNING: Area of a Rectangle = Length • Width A = L • W To get W on one side by itself, you need to get rid of____. W is being multiplied to ____ so do the ______and divide both sides by ___. Try it! Solve for W: A = L • W Work Space:

A rectangular bedroom has a length of 14 ft. If the area of the room is 126 ft2, what is its width? Now, you can ______the values you were given for A and L to find W! W= ___ Review: Solving literal equations and inequalities is exactly the same as ______.  Determine which variable needs to be ______.  Highlight the variable and determine what ______are being applied to that variable.  ______to isolate the variable.  When multiplying or dividing by a negative number, be sure to ______