Finite Math Examples

$g (x) = \frac{4 x - 8}{7 x + 3}$ , $x = 4$

Step 1

Replace the variable $x$ with $4$ in the expression.

$g (4) = \frac{4 (4) - 8}{7 (4) + 3}$

Step 2

Simplify the result.

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Step 2.1

Simplify the numerator.

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Step 2.1.1

Multiply $4$ by $4$ .

$g (4) = \frac{16 - 8}{7 (4) + 3}$

Step 2.1.2

Subtract $8$ from $16$ .

$g (4) = \frac{8}{7 (4) + 3}$

Step 2.2

Simplify the denominator.

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Step 2.2.1

Multiply $7$ by $4$ .

$g (4) = \frac{8}{28 + 3}$

Step 2.2.2

Add $28$ and $3$ .

$g (4) = \frac{8}{31}$

Step 2.3

The final answer is $\frac{8}{31}$ .

$\frac{8}{31}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\frac{8}{31}$

Decimal Form:

$0.25806451 \dots$

Step 4