Trigonometry Examples

$\frac{2 x + 2}{x + 1} = 2$

Step 1

Factor $2$ out of $2 x + 2$ .

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Step 1.1

Factor $2$ out of $2 x$ .

$\frac{2 (x) + 2}{x + 1} = 2$

Step 1.2

Factor $2$ out of $2$ .

$\frac{2 (x) + 2 (1)}{x + 1} = 2$

Step 1.3

Factor $2$ out of $2 (x) + 2 (1)$ .

$\frac{2 (x + 1)}{x + 1} = 2$

Step 2

Cancel the common factor of $x + 1$ .

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Step 2.1

Cancel the common factor.

$\frac{2 (x + 1)}{x + 1} = 2$

Step 2.2

Divide $2$ by $1$ .

$2 = 2$

Step 3

Since the two sides have been shown to be equivalent, the equation is an identity.

$\frac{2 x + 2}{x + 1} = 2$ is an identity.