Finite Math Examples

$S (p) = 9 p + 12$ , $D (p) = 280 - 9 p$

Step 1

Replace the function designators with the actual functions in $S (p) - D p$ .

$9 p + 12 - (280 - 9 p)$

Step 2

Simplify each term.

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Step 2.1

Apply the distributive property.

$9 p + 12 - 1 \cdot 280 - (- 9 p)$

Step 2.2

Multiply $- 1$ by $280$ .

$9 p + 12 - 280 - (- 9 p)$

Step 2.3

Multiply $- 9$ by $- 1$ .

$9 p + 12 - 280 + 9 p$

Step 3

Simplify by adding terms.

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Step 3.1

Add $9 p$ and $9 p$ .

$18 p + 12 - 280$

Step 3.2

Subtract $280$ from $12$ .

$18 p - 268$