Algebra Examples

$2 y = 16 x$

Step 1

Divide each term in $2 y = 16 x$ by $2$ and simplify.

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Step 1.1

Divide each term in $2 y = 16 x$ by $2$ .

$\frac{2 y}{2} = \frac{16 x}{2}$

Step 1.2

Simplify the left side.

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Step 1.2.1

Cancel the common factor of $2$ .

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Step 1.2.1.1

Cancel the common factor.

$\frac{2 y}{2} = \frac{16 x}{2}$

Step 1.2.1.2

Divide $y$ by $1$ .

$y = \frac{16 x}{2}$

Step 1.3

Simplify the right side.

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Step 1.3.1

Cancel the common factor of $16$ and $2$ .

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Step 1.3.1.1

Factor $2$ out of $16 x$ .

$y = \frac{2 (8 x)}{2}$

Step 1.3.1.2

Cancel the common factors.

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Step 1.3.1.2.1

Factor $2$ out of $2$ .

$y = \frac{2 (8 x)}{2 (1)}$

Step 1.3.1.2.2

Cancel the common factor.

$y = \frac{2 (8 x)}{2 \cdot 1}$

Step 1.3.1.2.3

Rewrite the expression.

$y = \frac{8 x}{1}$

Step 1.3.1.2.4

Divide $8 x$ by $1$ .

$y = 8 x$

Step 2

Since the equation can be written in the form $y = k x$ , $y$ varies directly with $x$ and $k$ . The constant of variation, $k$ , is $8$ .

$8$