Precalculus Examples

$9 x + 2 y = 8$

Step 1

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

$2 y = 8 - 9 x$

Step 2

Divide each term in $2 y = 8 - 9 x$ by $2$ and simplify.

Tap for more steps...

Step 2.1

Divide each term in $2 y = 8 - 9 x$ by $2$ .

$\frac{2 y}{2} = \frac{8}{2} + \frac{- 9 x}{2}$

Step 2.2

Simplify the left side.

Tap for more steps...

Step 2.2.1

Cancel the common factor of $2$ .

Tap for more steps...

Step 2.2.1.1

Cancel the common factor.

$\frac{2 y}{2} = \frac{8}{2} + \frac{- 9 x}{2}$

Step 2.2.1.2

Divide $y$ by $1$ .

$y = \frac{8}{2} + \frac{- 9 x}{2}$

$y = \frac{8}{2} + \frac{- 9 x}{2}$

$y = \frac{8}{2} + \frac{- 9 x}{2}$

Step 2.3

Simplify the right side.

Tap for more steps...

Step 2.3.1

Simplify each term.

Tap for more steps...

Step 2.3.1.1

Divide $8$ by $2$ .

$y = 4 + \frac{- 9 x}{2}$

Step 2.3.1.2

Move the negative in front of the fraction.

$y = 4 - \frac{9 x}{2}$

$y = 4 - \frac{9 x}{2}$

$y = 4 - \frac{9 x}{2}$

$y = 4 - \frac{9 x}{2}$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$