Solve for x |x-1|=9

$| x - 1 | = 9$

Step 1

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

$x - 1 = \pm 9$

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.

$x - 1 = 9$

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

Add $1$ to both sides of the equation.

$x = 9 + 1$

Add $9$ and $1$ .

$x = 10$

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

$x - 1 = - 9$

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

Add $1$ to both sides of the equation.

$x = - 9 + 1$

Add $- 9$ and $1$ .

$x = - 8$

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

$x = 10, - 8$