Algebra Examples

$f (x) = x + 3$ , $g (x) = 3 x + 4$ , $g (x) + f (x)$

Step 1

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

$3 x + 4 + x + 3$

Step 2

Simplify $3 x + 4 + x + 3$ .

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Step 2.1

Remove parentheses.

$3 x + 4 + x + 3$

Step 2.2

Add $3 x$ and $x$ .

$4 x + 4 + 3$

Step 2.3

Add $4$ and $3$ .

$4 x + 7$

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