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Literal Equations

A Literal Equation is an equation containing more than one variable. We can solve a literal
equation for any one variable in terms of the others. For example, if we wish to solve x − y = b
for x , we will need to add y to each side of the equation in order to isolate x :

Example: Solve AC = V for A . Divide both sides of the equation by C in order to isolate A:

Cancel the C’s on the left side of the equal sign .

Example: Solve 2x + y = 5 for y :

Example: Solve 2x + 3y = 6for y :

Note: This answer could also be written as

Example: Solve

Example: Solve the following equation for y:

Multiply every term by the LCD, 15.

Example: Solve the following equation for h :

Exercises: Solve the following equations for the indicated variable .

Answers:

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