Algebra Examples

$f (21) = 6 (21 + 2) - 3$

Step 1

Simplify each term.

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Step 1.1

Add $21$ and $2$ .

$f (21) = 6 \cdot 23 - 3$

Step 1.2

Multiply $6$ by $23$ .

$f (21) = 138 - 3$

$f (21) = 138 - 3$

Step 2

Subtract $3$ from $138$ .

$f (21) = 135$

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