Find Where Undefined/Discontinuous (-20y+30)/(-2y+6)

$\frac{- 20 y + 30}{- 2 y + 6}$

Step 1

Set the denominator in $\frac{- 20 y + 30}{- 2 y + 6}$ equal to $0$ to find where the expression is undefined.

$- 2 y + 6 = 0$

Step 2

Solve for $y$ .

Subtract $6$ from both sides of the equation.

$- 2 y = - 6$

Divide each term in $- 2 y = - 6$ by $- 2$ and simplify.

Divide each term in $- 2 y = - 6$ by $- 2$ .

$\frac{- 2 y}{- 2} = \frac{- 6}{- 2}$

Simplify the left side.

Cancel the common factor of $- 2$ .

Cancel the common factor.

$\frac{- 2 y}{- 2} = \frac{- 6}{- 2}$

Divide $y$ by $1$ .

$y = \frac{- 6}{- 2}$

Simplify the right side.

Divide $- 6$ by $- 2$ .

$y = 3$

Step 3