Solve for x |x-3|=9

$| x - 3 | = 9$

Step 1

Remove the absolute value term. This creates a $\pm$ on the right side of the equation because $| x | = \pm x$ .

$x - 3 = \pm 9$

Step 2

The complete solution is the result of both the positive and negative portions of the solution.

First, use the positive value of the $\pm$ to find the first solution.

$x - 3 = 9$

Move all terms not containing $x$ to the right side of the equation.

Add $3$ to both sides of the equation.

$x = 9 + 3$

Add $9$ and $3$ .

$x = 12$

Next, use the negative value of the $\pm$ to find the second solution.

$x - 3 = - 9$

Move all terms not containing $x$ to the right side of the equation.

Add $3$ to both sides of the equation.

$x = - 9 + 3$

Add $- 9$ and $3$ .

$x = - 6$

The complete solution is the result of both the positive and negative portions of the solution.

$x = 12, - 6$