Trigonometry Examples

$3 (x + 1) = 3 x + 3$

Step 1

Apply the distributive property.

$3 x + 3 \cdot 1 = 3 x + 3$

Step 2

Multiply $3$ by $1$ .

$3 x + 3 = 3 x + 3$

Step 3

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

$3 (x + 1) = 3 x + 3$ is an identity.