Determine if Linear 9x+11xy=12y

$9 x + 11 x y = 12 y$

Step 1

Solve the equation for $y$ .

Subtract $12 y$ from both sides of the equation.

$9 x + 11 x y - 12 y = 0$

Subtract $9 x$ from both sides of the equation.

$11 x y - 12 y = - 9 x$

Factor $y$ out of $11 x y - 12 y$ .

Factor $y$ out of $11 x y$ .

$y (11 x) - 12 y = - 9 x$

Factor $y$ out of $- 12 y$ .

$y (11 x) + y \cdot - 12 = - 9 x$

Factor $y$ out of $y (11 x) + y \cdot - 12$ .

$y (11 x - 12) = - 9 x$

Divide each term in $y (11 x - 12) = - 9 x$ by $11 x - 12$ and simplify.

Divide each term in $y (11 x - 12) = - 9 x$ by $11 x - 12$ .

$\frac{y (11 x - 12)}{11 x - 12} = \frac{- 9 x}{11 x - 12}$

Simplify the left side.

Cancel the common factor of $11 x - 12$ .

Cancel the common factor.

$\frac{y (11 x - 12)}{11 x - 12} = \frac{- 9 x}{11 x - 12}$

Divide $y$ by $1$ .

$y = \frac{- 9 x}{11 x - 12}$

Simplify the right side.

Move the negative in front of the fraction.

$y = - \frac{9 x}{11 x - 12}$

Step 2

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be $0$ or $1$ for each of its variables. In this case, the degree of variable $y$ is $1$ , the degrees of the variables in the equation violate the linear equation definition, which means that the equation is not a linear equation.

Not Linear

Determine if Linear 9x+11xy=12y

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