Precalculus Examples

Since does not contain the variable to solve for, move it to the right side of the equation by subtracting from both sides.
Set up the rational expression with the same denominator over the entire equation.
Tap for more steps...
Multiply each term by a factor of that will equate all the denominators. In this case, all terms need a denominator of . The expression needs to be multiplied by to make the denominator . The expression needs to be multiplied by to make the denominator .
Multiply the expression by a factor of to create the least common denominator (LCD) of .
Multiply by to get .
Multiply the expression by a factor of to create the least common denominator (LCD) of .
Multiply by to get .
Since the expression on each side of the equation has the same denominator, the numerators must be equal.
Rewrite the equation as .
Multiply by to get .
Multiply by to get .
Multiply each term in by
Tap for more steps...
Multiply each term in by .
Simplify .
Tap for more steps...
Multiply by to get .
Multiply by to get .
Multiply by to get .
Check that all solutions found are valid and are part of the domain by substituting them into the original equation.
Enter YOUR Problem

Enter the email address associated with your Mathway account below and we'll send you a link to reset your password.

Please enter an email address
Please enter a valid email address
The email address you entered was not found in our system
The email address you entered is associated with a Facebook user
We're sorry, we were unable to process your request at this time

Mathway Premium

Step-by-step work + explanations
  •    Step-by-step work
  •    Detailed explanations
  •    No advertisements
  •    Access anywhere
Access the steps on both the Mathway website and mobile apps
$--.--/month
$--.--/year (--%)

Mathway Premium

Visa and MasterCard security codes are located on the back of card and are typically a separate group of 3 digits to the right of the signature strip.

American Express security codes are 4 digits located on the front of the card and usually towards the right.
This option is required to subscribe.
Go Back

Step-by-step upgrade complete!

Mathway requires javascript and a modern browser.
  [ x 2     1 2     π     x d x   ]