Precalculus Examples

$f (x) = 7 x - 2$ , $x = 6$

Step 1

Replace the variable $x$ with $6$ in the expression.

$f (6) = 7 (6) - 2$

Step 2

Simplify the result.

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Step 2.1

Multiply $7$ by $6$ .

$f (6) = 42 - 2$

Step 2.2

Subtract $2$ from $42$ .

$f (6) = 40$

Step 2.3

The final answer is $40$ .

$40$

Step 3

Enter YOUR Problem

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