Find Where Undefined/Discontinuous (20+40x)/(20x)

$\frac{20 + 40 x}{20 x}$

Step 1

Set the denominator in $\frac{20 + 40 x}{20 x}$ equal to $0$ to find where the expression is undefined.

$20 x = 0$

Step 2

Divide each term in $20 x = 0$ by $20$ and simplify.

Divide each term in $20 x = 0$ by $20$ .

$\frac{20 x}{20} = \frac{0}{20}$

Simplify the left side.

Cancel the common factor of $20$ .

Cancel the common factor.

$\frac{20 x}{20} = \frac{0}{20}$

Divide $x$ by $1$ .

$x = \frac{0}{20}$

Simplify the right side.

Divide $0$ by $20$ .

$x = 0$

Step 3