Precalculus Examples

$f (x) = | x | + 9$

Step 1

Set $| x | + 9$ equal to $0$ .

$| x | + 9 = 0$

Step 2

Solve for $x$ .

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Step 2.1

Subtract $9$ from both sides of the equation.

$| x | = - 9$

Step 2.2

There is no value of $x$ that makes the equation be true since an absolute value can never be negative.

No solution