Algebra Examples

$f (x) = 2 x + 2$ for $x = 4$

Step 1

Replace the variable $x$ with $4$ in the expression.

$f (4) = 2 (4) + 2$

Step 2

Simplify the result.

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Step 2.1

Multiply $2$ by $4$ .

$f (4) = 8 + 2$

Step 2.2

Add $8$ and $2$ .

$f (4) = 10$

Step 2.3

The final answer is $10$ .

$10$

Step 3