Finite Math Examples

$f (x) = x - 5$ , $g (x) = 3 x + 6$

Step 1

Replace the function designators with the actual functions in $f (x) + g (x)$ .

$x - 5 + 3 x + 6$

Step 2

Simplify.

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Step 2.1

Add $x$ and $3 x$ .

$4 x - 5 + 6$

Step 2.2

Add $- 5$ and $6$ .

$4 x + 1$