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
:
![](./articles_imgs/5303/litera7.gif)
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 .
![](./articles_imgs/5303/litera9.gif)
Example: Solve 2x + y = 5 for y :
![](./articles_imgs/5303/litera10.jpg)
Example: Solve 2x + 3y = 6for y :
![](./articles_imgs/5303/litera11.jpg)
Note: This answer could also be written as
![](./articles_imgs/5303/litera12.jpg)
Example: Solve
![](./articles_imgs/5303/litera13.jpg)
Example: Solve the following equation for y:
Multiply every term by
the LCD, 15.
![](./articles_imgs/5303/litera15.jpg)
Example: Solve the following equation for h :
![](./articles_imgs/5303/litera16.jpg)
Exercises: Solve the following equations for the indicated
variable .
![](./articles_imgs/5303/litera17.jpg)
Answers:
![](./articles_imgs/5303/litera18.jpg)